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Dioecy

Eloise Zomia — Mon, 06 Jul 2026 14:59:11 GMT

Eloise Zomia: Copyedit: remove comma-before-and/or cadence (house no-Oxford-comma rule); strip 3 figure-placeholder markers now that the diagrams are uploaded

{{Botany series
|image=Cannabis-male-female-inflorescence-comparison.jpg
|alt=Two cannabis flowering shoots side by side; the shoot on the left bears clustered rounded pollen sacs, the shoot on the right bears paired white stigmas emerging from leafy bracts.
|caption=Cannabis is dioecious: staminate (male, left) and pistillate (female, right) flowers form on separate plants. Chromosomal sex is set by [[Sex determination in cannabis|X and Y chromosomes]], while [[Sex expression|sex expression]] can be shifted by the environment.
}}

'''Dioecy''' is the condition in which male and female flowers are borne on separate individuals, so that any one plant is either pollen-bearing (staminate) or seed-bearing (pistillate). ''[[Cannabis sativa|Cannabis]]'' is normally dioecious: a crop raised from seed separates into male and female plants in roughly equal numbers.<ref name="small2003">{{cite journal |last=Small |first=E. |last2=Pocock |first2=T. |last3=Cavers |first3=P.B. |title=The biology of Canadian weeds. 119. ''Cannabis sativa'' L. |journal=Canadian Journal of Plant Science |year=2003 |volume=83 |issue=1 |pages=217–237 |doi=10.4141/P02-021}}</ref> The two sexes differ in the structure of their flowers and, less sharply, in growth habit.<ref name="clarke2013">{{cite book |last=Clarke |first=R.C. |last2=Merlin |first2=M.D. |title=Cannabis: Evolution and Ethnobotany |publisher=University of California Press |year=2013 |isbn=978-0-520-27048-0}}</ref> Dioecy is the ancestral and prevailing condition in the family [[Cannabaceae]], shared with the sister genus ''[[wikipedia:Humulus|Humulus]]'', the hops; a minority of cultivated hemp lines are instead [[Monoecy|monoecious]], carrying both kinds of flower on one plant.<ref name="divashuk2014">{{cite journal |last=Divashuk |first=M.G. |last2=Alexandrov |first2=O.S. |last3=Razumova |first3=O.V. |last4=Kirov |first4=I.V. |last5=Karlov |first5=G.I. |title=Molecular cytogenetic characterization of the dioecious Cannabis sativa with an XY chromosome sex determination system |journal=PLoS ONE |year=2014 |volume=9 |issue=1 |article-number=e85118 |doi=10.1371/journal.pone.0085118 |doi-access=free}}</ref><ref name="faux2014">{{cite journal |last=Faux |first=A.-M. |last2=Berhin |first2=A. |last3=Dauguet |first3=N. |last4=Bertin |first4=P. |title=Sex chromosomes and quantitative sex expression in monoecious hemp (Cannabis sativa L.) |journal=Euphytica |year=2014 |volume=196 |issue=2 |pages=183–197 |doi=10.1007/s10681-013-1023-y}}</ref>

The separation of the sexes shapes how cannabis is grown and how its populations are structured. Because [[Cannabinoid|cannabinoids]] accumulate mainly in the resin of the unfertilised female [[Inflorescence morphology|inflorescence]], drug-type and cannabinoid crops are grown as female-only stands.<ref name="clarke2013"/> Excluding pollen is central to their cultivation, since a pollinated inflorescence sets seed in place of resin.<ref name="small2015">{{cite journal |last=Small |first=E. |title=Evolution and classification of ''Cannabis sativa'' (marijuana, hemp) in relation to human utilization |journal=The Botanical Review |year=2015 |volume=81 |issue=3 |pages=189–294 |doi=10.1007/s12229-015-9157-3}}</ref> Dioecy also enforces [[outcrossing]]: no plant can fertilise itself, so every seed descends from two separate parents, a mating system that maintains [[genetic diversity|genetic variation]] within a population.<ref name="clarke2013"/><ref name="small2003"/>

Chromosomal sex in cannabis is set by a pair of X and Y chromosomes. The genetic and molecular detail of that system is treated in [[Sex determination in cannabis]]. This article concerns dioecy as a reproductive system: the form and behaviour of male and female plants, the ratio in which the sexes occur, the monoecious exception and the consequences of separate sexes for breeding and for wild and [[Landrace Cannabis|landrace]] populations.

== Dioecy in cannabis ==

In its wild and most of its cultivated forms cannabis is dioecious. The sexes cannot be told apart during vegetative growth and diverge only at flowering, when the distinct male and female flowers appear.<ref name="small2003"/>

=== Staminate and pistillate plants ===



Staminate plants bear their flowers in loose, branched clusters. Each male flower has five tepals and five pendant anthers that split to release pollen, which is carried on the wind.<ref name="small2003"/> Pistillate plants carry their flowers singly in the axils of small leaves and bracts, each flower reduced to an ovary wrapped in a bract and topped by two long stigmas that catch airborne pollen.<ref name="small2003"/> Males are commonly taller and more sparsely branched, flower slightly earlier and die back after shedding pollen, while females stay in flower for longer and, if no pollen reaches them, continue to produce resin instead of setting seed.<ref name="small2003"/><ref name="clarke2013"/> Because the sexes are alike until flowering, a grower cannot separate them during vegetative growth; in a female-only crop the males are identified and removed once their flowers appear, a routine known as [[Roguing|roguing]].<ref name="clarke2013"/>

== Monoecy and continuous sex expression ==

[[File:Cannabis-dioecy-monoecy-continuum.jpg|thumb|right|300px|alt=A horizontal scale from all-male on the left to all-female on the right, with a separate male plant and a separate female plant at the two ends and a single plant bearing both flower types placed in the middle.|Dioecy places the sexes on separate plants at the two ends of a scale of [[Sex expression|sex expression]]; monoecious hemp sits in between, bearing both flower types on one chromosomally female plant.]]

The main departure from dioecy is found in cultivated hemp. Monoecious hemp cultivars carry both male and female flowers on the same plant, a trait bred into fibre and grain lines so that a crop flowers and ripens evenly and can be harvested in a single pass.<ref name="faux2014"/><ref name="small2015"/> Monoecy in cannabis is not a separate chromosomal sex. Cytogenetic and marker studies show that monoecious cultivars carry the female XX chromosome constitution and lack a Y, so their bisexual flowering is a genetic modification acting on an otherwise female plant.<ref name="razumova2016">{{cite journal |last=Razumova |first=O.V. |last2=Alexandrov |first2=O.S. |last3=Divashuk |first3=M.G. |last4=Sukhorada |first4=T.I. |last5=Karlov |first5=G.I. |title=Molecular cytogenetic analysis of monoecious hemp (Cannabis sativa L.) cultivars reveals its karyotype variations and sex chromosomes constitution |journal=Protoplasma |year=2016 |volume=253 |issue=3 |pages=895–901 |doi=10.1007/s00709-015-0851-0}}</ref><ref name="faux2014"/> Monoecy is valued in fibre and grain hemp, where a crop of uniform flowering behaviour ripens together and needs no removal of males, which suits mechanised harvest.<ref name="small2015"/>

Monoecious hemp shows a graded range of sex expression: some plants are almost entirely male, some evenly mixed and others almost entirely female.<ref name="faux2014"/> Breeders score this on a scale and cultivars differ in their average position on it, so monoecy behaves as a heritable, quantitative character.<ref name="faux2014"/> Because expression grades continuously and is only partly heritable, monoecious lines are less stable than dioecious ones and throw a proportion of strongly male or female plants that breeders select against.<ref name="faux2014"/> Dioecious plants can also stray across the divide: under stress or hormone treatment a plant of one sex may form a few flowers of the other, whether a single [[Hermaphroditism|hermaphroditic]] flower or the full reversals used in seed production. Reviews describe the sexual system of cannabis as mixed and modifiable, under both genetic and environmental control.<ref name="baek2025">{{cite journal |last=Baek |first=Y. |last2=Vergara |first2=D. |title=A review of sexual strategies in Cannabis sativa L. under genomic and environmental controls |journal=Agrosystems, Geosciences & Environment |year=2025 |volume=8 |issue=1 |article-number=e70050 |doi=10.1002/agg2.70050 |doi-access=free}}</ref><ref name="owen2023">{{cite journal |last=Owen |first=L.C. |last2=Suchoff |first2=D.H. |last3=Chen |first3=H. |title=A novel method for stimulating Cannabis sativa L. male flowers from female plants |journal=Plants |year=2023 |volume=12 |issue=19 |article-number=3371 |doi=10.3390/plants12193371 |doi-access=free}}</ref>

== Sex ratios ==

A cross between an XX female and an XY male predicts a primary sex ratio near one to one, the even split expected of such a cross. Cannabis approaches this ratio when nothing disturbs it.<ref name="divashuk2014"/><ref name="owen2023"/> Departures from equal numbers in a crop arise mainly from the lability of sex expression, not from any distortion of chromosome segregation: conditions during early growth, among them [[Photoperiod response|photoperiod]], nutrient supply and stress, can bias the flowers a stand produces toward one sex.<ref name="baek2025"/><ref name="small2003"/> Reported ratios in cultivation and in wild stands vary accordingly. Reviews treat the balance of the sexes as an outcome of genetic and environmental control acting together.<ref name="baek2025"/> In a drug-type crop the aim is to remove the males altogether, so the sex ratio of a seed batch is a practical concern. It is one reason growers turn to feminised seed or to [[Vegetative propagation|clonal propagation]], both of which avoid the segregation of the sexes.<ref name="clarke2013"/>

== Environmental sex reversal ==

[[File:Cannabis-chromosomal-vs-expressed-sex.jpg|thumb|right|300px|alt=A diagram with two parallel tracks for one plant: an upper fixed track marked XX or XY and a lower sliding track that moves between male and female, with an XX plant shifted toward male flowering producing X-only pollen and all-female seed.|Chromosomal sex is fixed at fertilisation, but expressed sex can slide along a scale. An XX plant induced to shed pollen passes on only X chromosomes, so its seed is all-female.]]

A plant's chromosomal sex and the sex of the flowers it produces can be uncoupled. Hormonal, nutritional and environmental signals shift expressed sex without changing the chromosomes.<ref name="owen2023"/> The commitment to a male or female pathway is made early, before any flower is visible, so a plant's eventual sex can be redirected during that early window.<ref name="moliterni2004">{{cite journal |last=Moliterni |first=V.M.C. |last2=Cattivelli |first2=L. |last3=Ranalli |first3=P. |last4=Mandolino |first4=G. |title=The sexual differentiation of Cannabis sativa L.: a morphological and molecular study |journal=Euphytica |year=2004 |volume=140 |issue=1–2 |pages=95–106 |doi=10.1007/s10681-004-4758-7}}</ref> This lability is put to direct use in seed production. Treating a genetically female plant with a silver compound makes it form functional male flowers and shed pollen; because that pollen carries only X chromosomes, crossing it onto another female yields seed that is entirely female, the basis of feminised seed.<ref name="mohanram1982">{{cite journal |last=Mohan Ram |first=H.Y. |last2=Sett |first2=R. |title=Induction of fertile male flowers in genetically female Cannabis sativa plants by silver nitrate and silver thiosulphate anionic complex |journal=Theoretical and Applied Genetics |year=1982 |volume=62 |issue=4 |pages=369–375 |doi=10.1007/BF00275107}}</ref><ref name="owen2023"/> The same responsiveness of expressed sex to growing conditions is one instance of the plant's broader [[phenotypic plasticity]], so the sex a cannabis plant shows is not a wholly reliable guide to the chromosomes it carries.<ref name="baek2025"/>

== Genetic basis of sex ==

{{Main|Sex determination in cannabis}}

Sex in dioecious cannabis is carried on a pair of heteromorphic sex chromosomes: females are XX and males XY, so the male is the heterogametic sex; monoecious cultivars, being XX, carry no Y.<ref name="divashuk2014"/> How the chromosomes specify sex is not settled: the literature discusses both a dominant male-determining Y and a balance between the X chromosomes and the autosomes, with cannabis showing features cited for each.<ref name="divashuk2014"/><ref name="faux2014"/> The sex chromosomes were localised to a single chromosome pair in 2020.<ref name="prentout2020">{{cite journal |last=Prentout |first=D. |last2=Razumova |first2=O. |last3=Rhoné |first3=B. |last4=Badouin |first4=H. |last5=Henri |first5=H. |last6=Feng |first6=C. |last7=Käfer |first7=J. |last8=Karlov |first8=G. |last9=Marais |first9=G.A.B. |title=An efficient RNA-seq-based segregation analysis identifies the sex chromosomes of Cannabis sativa |journal=Genome Research |year=2020 |volume=30 |issue=2 |pages=164–172 |doi=10.1101/gr.251207.119 |doi-access=free}}</ref> The genetics and molecular biology of the system, including the structure and evolution of the chromosomes and the markers used to read them, are set out in [[Sex determination in cannabis]].

== Ecology and evolution of dioecy ==

[[File:Cannabis-dioecious-outcrossing.jpg|thumb|right|300px|alt=A male plant on the left and a female plant on the right, with pollen blowing from the male to the female, which then bears seed.|Separate sexes force outcrossing: wind carries pollen from a male plant to a female, so every seed is a cross between two plants. The same wind dispersal makes female stands hard to isolate from stray pollen.]]

Dioecy occurs in only about six per cent of [[wikipedia:Flowering plant|flowering-plant]] species and has arisen independently many times; it is generally understood as one of the ways a plant lineage enforces outcrossing.<ref name="renner2014">{{cite journal |last=Renner |first=S.S. |title=The relative and absolute frequencies of angiosperm sexual systems: dioecy, monoecy, gynodioecy, and an updated online database |journal=American Journal of Botany |year=2014 |volume=101 |issue=10 |pages=1588–1596 |doi=10.3732/ajb.1400196}}</ref> In cannabis the same effect follows from the separation of the sexes: because a plant cannot pollinate itself, matings are obligate crosses, which keeps populations [[genetic diversity|genetically diverse]] and heterozygous.<ref name="clarke2013"/><ref name="small2003"/> Pollen is carried on the wind and can travel long distances, so a female stand is difficult to isolate from unwanted pollen and [[gene flow]] between neighbouring populations and crops is easy.<ref name="small2003"/><ref name="clarke2013"/>

These properties matter for the maintenance of [[Landrace Cannabis|landrace]] and wild populations. A dioecious landrace cannot be reproduced from a single plant. Because pollen moves so freely, a traditional population grown near hybrid crops is readily [[genetic contamination|contaminated]] by their pollen.<ref name="clarke2013"/><ref name="mcpartlandsmall2020">{{cite journal |last=McPartland |first=J.M. |last2=Small |first2=E. |title=A classification of endangered high-THC cannabis (''Cannabis sativa'' subsp. ''indica'') domesticates and their wild relatives |journal=PhytoKeys |year=2020 |volume=144 |pages=81–112 |doi=10.3897/phytokeys.144.46700 |doi-access=free}}</ref> Conserving such populations therefore means sampling both sexes and enough individuals to hold their [[Population biology|effective population size]] and standing diversity, whether in the field or in an [[ex situ conservation|ex situ]] collection.<ref name="mcpartlandsmall2020"/><ref name="clarke2013"/>

Separate sexes carry a cost, since only the female plants of a stand set seed, yet the outcrossing that dioecy enforces keeps populations genetically variable and prevents self-fertilisation.<ref name="renner2014"/><ref name="clarke2013"/> The same feature makes uniform types harder to fix in cultivation, one reason fibre and grain hemp have been bred toward monoecy and drug cannabis toward feminised, clonally propagated lines.<ref name="small2015"/><ref name="clarke2013"/>

== See also ==

* [[Hermaphroditism]]
* [[Monoecy]]
* [[Pollination biology]]
* [[Reproductive biology]]
* [[Sex determination in cannabis]]
* [[Sex expression]]

== References ==

<references />

[[Category:Reproductive Biology]]

Sex determination in cannabis

Eloise Zomia — Sun, 05 Jul 2026 16:35:37 GMT

Eloise Zomia: /* Sex chromosomes */

{{Genetics series
|image=Cannabis-male-female-inflorescence-comparison.jpg
|alt=Two cannabis flowering shoots side by side; the left bears clustered pollen sacs, the right bears paired white stigmas emerging from bracts.
|caption=In dioecious cannabis, staminate (male, left) and pistillate (female, right) flowers form on separate plants; [[Sex expression|sex expression]] can nonetheless be uncoupled from chromosomal sex.
}}

'''Sex determination in cannabis''' is the genetic and developmental process that establishes whether a ''[[Cannabis sativa|Cannabis]]'' plant develops as male, female, or, in some cultivated forms, [[Monoecy|monoecious]]. Cannabis is normally [[Dioecy|dioecious]]: pollen-bearing (male) and seed-bearing (female) flowers form on separate individuals, and sex is set by a pair of heteromorphic sex chromosomes. Females carry two X chromosomes (XX) and males an X and a Y (XY), so the male is the heterogametic sex and the Y is transmitted only through pollen.<ref name="divashuk2014">{{cite journal |last=Divashuk |first=M.G. |last2=Alexandrov |first2=O.S. |last3=Razumova |first3=O.V. |last4=Kirov |first4=I.V. |last5=Karlov |first5=G.I. |title=Molecular cytogenetic characterization of the dioecious Cannabis sativa with an XY chromosome sex determination system |journal=PLoS ONE |year=2014 |volume=9 |issue=1 |article-number=e85118 |doi=10.1371/journal.pone.0085118 |doi-access=free}}</ref>

Chromosomal sex, fixed at fertilisation, is distinct from '''[[Sex expression|sex expression]]''': the male or female character of the flowers a plant actually produces. Sex expression is labile: hormonal, chemical and environmental signals can shift a plant toward the opposite sex's flowers without altering its chromosomes, and a genetically female (XX) plant induced to shed pollen transmits only X-bearing gametes.<ref name="owen2023">{{cite journal |last=Owen |first=L.C. |last2=Suchoff |first2=D.H. |last3=Chen |first3=H. |title=A novel method for stimulating Cannabis sativa L. male flowers from female plants |journal=Plants |year=2023 |volume=12 |issue=19 |article-number=3371 |doi=10.3390/plants12193371 |doi-access=free}}</ref>

The distinction is central to cannabis cultivation and breeding. Because [[cannabinoid|cannabinoids]] accumulate chiefly in the unpollinated female [[wikipedia:Inflorescence|inflorescence]], drug-type and cannabinoid-hemp crops are grown as all-female stands; monoecious cultivars underpin uniform fibre and seed hemp; and reliable early identification of a plant's chromosomal sex, before flowers appear, is a routine breeding and [[wikipedia:Roguing|roguing]] task.<ref name="rierabegue2025">{{cite journal |last=Riera-Begué |first=A. |last2=Toscani |first2=M. |last3=Malik |first3=A. |last4=Dowling |first4=C.A. |last5=Schilling |first5=S. |last6=Melzer |first6=R. |title=A simple and reliable PCR-based method to differentiate between XX and XY sex genotypes in Cannabis sativa |journal=Planta |year=2025 |volume=262 |issue=4 |article-number=87 |doi=10.1007/s00425-025-04804-z}}</ref> For dioecious [[Landrace cannabis|landrace]] populations, the obligate [[outcrossing]] that dioecy enforces also shapes mating structure and the maintenance of [[genetic diversity]].

== Sexual system ==

The wild and most cultivated forms of cannabis are dioecious, and this is the ancestral condition in the family [[wikipedia:Cannabaceae|Cannabaceae]].<ref name="divashuk2014"/> A minority of hemp cultivars are '''monoecious''', bearing both male and female flowers on one plant. Monoecy is not a separate chromosomal sex: [[wikipedia:Cytogenetics|cytogenetic]] and marker analysis shows monoecious cultivars carry the female XX constitution and lack a Y chromosome, so their sexual behaviour has a genetic basis laid over an otherwise female genotype.<ref name="razumova2016">{{cite journal |last=Razumova |first=O.V. |last2=Alexandrov |first2=O.S. |last3=Divashuk |first3=M.G. |last4=Sukhorada |first4=T.I. |last5=Karlov |first5=G.I. |title=Molecular cytogenetic analysis of monoecious hemp (Cannabis sativa L.) cultivars reveals its karyotype variations and sex chromosomes constitution |journal=Protoplasma |year=2016 |volume=253 |issue=3 |pages=895–901 |doi=10.1007/s00709-015-0851-0}}</ref><ref name="faux2014">{{cite journal |last=Faux |first=A.-M. |last2=Berhin |first2=A. |last3=Dauguet |first3=N. |last4=Bertin |first4=P. |title=Sex chromosomes and quantitative sex expression in monoecious hemp (Cannabis sativa L.) |journal=Euphytica |year=2014 |volume=196 |issue=2 |pages=183–197 |doi=10.1007/s10681-013-1023-y}}</ref>

Sex expression in monoecious hemp is continuous, grading from wholly male to wholly female plants. Breeders score it on a scale from all-male to all-female flowering, and cultivars differ significantly in their mean position on that scale, which is one reason monoecy behaves as a [[heritability|heritable]] [[quantitative trait|quantitative character]], not a [[monogenic trait|single-gene trait]].<ref name="faux2014"/> Dioecious plants can likewise produce a few flowers of the opposite sex under stress or hormonal treatment, a lability that ranges from the occasional [[Hermaphroditism|hermaphroditic]] flower to the deliberate reversals used in seed production.<ref name="owen2023"/> Reviews of the species treat this mixed and modifiable sexual system as the product of both genomic and environmental control.<ref name="baek2025">{{cite journal |last=Baek |first=Y. |last2=Vergara |first2=D. |title=A review of sexual strategies in Cannabis sativa L. under genomic and environmental controls |journal=Agrosystems, Geosciences & Environment |year=2025 |volume=8 |issue=1 |article-number=e70050 |doi=10.1002/agg2.70050 |doi-access=free}}</ref>

[[File:Cannabis-monoecious-hemp-plant.jpg|thumb|right|280px|alt=A single hemp plant bearing both pollen-sac clusters and stigma-bearing flowers at different nodes on the same stem.|A monoecious hemp plant carries male and female flowers on one individual. Monoecious cultivars are chromosomally female (XX); the degree of monoecy is a heritable, quantitative trait.]]

== Sex chromosomes ==

[[File:Cannabis-sex-chromosomes-XY-ideogram.jpg|thumb|right|280px|alt=Diagram of the cannabis XY chromosome pair; a long non-recombining region shaded across most of both chromosomes and a short pseudoautosomal region at one tip where X and Y align.|The cannabis sex chromosome pair (chromosome 1). Most of its length is a non-recombining, X-specific region; a short pseudoautosomal region at one end continues to recombine in males. The Y (right) is enlarged and heavily loaded with repetitive DNA.]]

Cannabis is [[wikipedia:Ploidy|diploid]] with 2''n'' = 20: nine pairs of [[wikipedia:Autosome|autosomes]] and one pair of sex chromosomes, homomorphic in females (XX) and heteromorphic in males (XY).<ref name="divashuk2014"/><ref name="petit2020">{{cite journal |last=Petit |first=J. |last2=Salentijn |first2=E.M.J. |last3=Paulo |first3=M.-J. |last4=Denneboom |first4=C. |last5=Trindade |first5=L.M. |title=Genetic architecture of flowering time and sex determination in hemp (Cannabis sativa L.): a genome-wide association study |journal=Frontiers in Plant Science |year=2020 |volume=11 |article-number=569958 |doi=10.3389/fpls.2020.569958 |doi-access=free}}</ref> Cytogenetic measurement places the Y as the largest chromosome in the complement, slightly larger than the X and the largest autosome; it carries one fully [[wikipedia:Heterochromatin|heterochromatic]] arm and one euchromatic arm, and a subtelomeric repeat family marks the euchromatic Y arm and both arms of the X.<ref name="divashuk2014"/>

The sex chromosome pair was localised in the genome in 2020, when segregation of X- and Y-linked transcripts across a controlled cross assigned sex to chromosome pair 1 of the reference assembly.<ref name="prentout2020">{{cite journal |last=Prentout |first=D. |last2=Razumova |first2=O. |last3=Rhoné |first3=B. |last4=Badouin |first4=H. |last5=Henri |first5=H. |last6=Feng |first6=C. |last7=Käfer |first7=J. |last8=Karlov |first8=G. |last9=Marais |first9=G.A.B. |title=An efficient RNA-seq-based segregation analysis identifies the sex chromosomes of Cannabis sativa |journal=Genome Research |year=2020 |volume=30 |issue=2 |pages=164–172 |doi=10.1101/gr.251207.119 |doi-access=free}}</ref> That analysis found most of the chromosome, a region of roughly 75 megabases, to be non-[[wikipedia:Genetic recombination|recombining]] and X-specific, with a smaller [[wikipedia:Pseudoautosomal region|pseudoautosomal region]] that still recombines in males; independent sex-linked marker studies had already inferred such a pseudoautosomal region and located it to the distal euchromatic arm.<ref name="prentout2020"/><ref name="peil2003">{{cite journal |last=Peil |first=A. |last2=Flachowsky |first2=H. |last3=Schumann |first3=E. |last4=Weber |first4=W.E. |title=Sex-linked AFLP markers indicate a pseudoautosomal region in hemp (Cannabis sativa L.) |journal=Theoretical and Applied Genetics |year=2003 |volume=107 |issue=1 |pages=102–109 |doi=10.1007/s00122-003-1212-5}}</ref>

The Y is substantially degenerated despite its size. Expression of Y-linked alleles runs at about half that of their X-linked counterparts, consistent with the loss of a large fraction of Y-linked genes and only partial [[wikipedia:Sex-chromosome dosage compensation|dosage compensation]]; recombination between the X and Y was estimated to have stopped roughly 27 million years ago, and the authors suggested these may be among the oldest plant sex chromosomes dated from sequence data.<ref name="prentout2020"/> Y differentiation is associated with the accumulation of repetitive DNA: a LINE-like [[wikipedia:Retrotransposon|retrotransposon]] accumulates specifically on the sex chromosome, and further male-associated sequences correspond to copia-like retrotransposons that give intense signals on the Y.<ref name="sakamoto2000">{{cite journal |last=Sakamoto |first=K. |last2=Ohmido |first2=N. |last3=Fukui |first3=K. |last4=Kamada |first4=H. |last5=Satoh |first5=S. |title=Site-specific accumulation of a LINE-like retrotransposon in a sex chromosome of the dioecious plant Cannabis sativa |journal=Plant Molecular Biology |year=2000 |volume=44 |issue=6 |pages=723–732 |doi=10.1023/A:1026574405717}}</ref><ref name="sakamoto2005">{{cite journal |last=Sakamoto |first=K. |last2=Abe |first2=T. |last3=Matsuyama |first3=T. |last4=Yoshida |first4=S. |last5=Ohmido |first5=N. |last6=Fukui |first6=K. |last7=Satoh |first7=S. |title=RAPD markers encoding retrotransposable elements are linked to the male sex in Cannabis sativa L. |journal=Genome |year=2005 |volume=48 |issue=5 |pages=931–936 |doi=10.1139/g05-056}}</ref> [[wikipedia:In situ hybridization|Genomic in-situ hybridisation]] indicates that a male-specific region occupies most of the Y, leaving only a small pseudoautosomal segment and pointing to a long, advanced course of sex chromosome evolution.<ref name="razumova2023">{{cite journal |last=Razumova |first=O.V. |last2=Divashuk |first2=M.G. |last3=Alexandrov |first3=O.S. |last4=Karlov |first4=G.I. |title=GISH painting of the Y chromosomes suggests advanced phases of sex chromosome evolution in three dioecious Cannabaceae species (Humulus lupulus, H. japonicus, and Cannabis sativa) |journal=Protoplasma |year=2023 |volume=260 |issue=1 |pages=249–256 |doi=10.1007/s00709-022-01774-x}}</ref>

Widely used [[Cannabis genome|reference genome assemblies]] were built from female plants, so the Y chromosome is less completely represented than the rest of the genome, and a dedicated male assembly is still needed to characterise it fully.<ref name="grassa2021">{{cite journal |last=Grassa |first=C.J. |last2=Weiblen |first2=G.D. |last3=Wenger |first3=J.P. |last4=Dabney |first4=C. |last5=Poplawski |first5=S.G. |last6=Motley |first6=S.T. |last7=Michael |first7=T.P. |last8=Schwartz |first8=C.J. |title=A new Cannabis genome assembly associates elevated cannabidiol (CBD) with hemp introgressed into marijuana |journal=New Phytologist |year=2021 |volume=230 |issue=4 |pages=1665–1679 |doi=10.1111/nph.17243 |doi-access=free}}</ref><ref name="laverty2019">{{cite journal |last=Laverty |first=K.U. |last2=Stout |first2=J.M. |last3=Sullivan |first3=M.J. |last4=Shah |first4=H. |last5=Gill |first5=N. |last6=Holbrook |first6=L. |last7=Deikus |first7=G. |last8=Sebra |first8=R. |last9=Hughes |first9=T.R. |last10=Page |first10=J.E. |last11=van Bakel |first11=H. |title=A physical and genetic map of Cannabis sativa identifies extensive rearrangements at the THC/CBD acid synthase loci |journal=Genome Research |year=2019 |volume=29 |issue=1 |pages=146–156 |doi=10.1101/gr.242594.118 |doi-access=free}}</ref>

== Genetic basis ==

How the sex chromosomes actually specify sex in cannabis is not settled. Two models are debated for dioecious plants generally: an ''active-Y'' system, in which a dominant, male-determining Y imposes maleness, and an ''X-to-autosome balance'' system, in which the ratio of X chromosomes to autosomes sets the sexual phenotype. Cannabis has features cited for each. The Y is required for maleness, since female and monoecious plants are alike XX and never carry a Y, which is consistent with a male-determining Y,<ref name="divashuk2014"/><ref name="razumova2016"/> yet part of the hemp-genetics literature describes sex in dioecious cannabis as governed by an X-to-autosome equilibrium.<ref name="faux2014"/>

[[File:Cannabis-sex-determination-models.jpg|thumb|right|280px|alt=Two side-by-side schematics contrasting sex-determination models: on the left a dominant male-determining Y chromosome imposing maleness, on the right the ratio of X chromosomes to autosomes setting the sexual phenotype.|Two models are debated for cannabis sex determination. In an active-Y system a dominant, male-determining Y imposes maleness; in an X-to-autosome balance system the ratio of X chromosomes to autosomes sets the sexual phenotype. Cannabis shows features cited for each, and the question is unresolved.]]

The genetic architecture of sex expression is at least partly polygenic, which a purely single-locus Y model does not fully capture. [[wikipedia:Genome-wide association study|Genome-wide association mapping]] resolves a small number of sex-determination loci of large effect, and [[Quantitative trait locus|QTL]] studies of dioecious and monoecious hemp likewise recover several contributing regions, implying autosomal modifiers act alongside the sex chromosomes.<ref name="petit2020"/><ref name="faux2016">{{cite journal |last=Faux |first=A.-M. |last2=Draye |first2=X. |last3=Flamand |first3=M.-C. |last4=Occre |first4=A. |last5=Bertin |first5=P. |title=Identification of QTLs for sex expression in dioecious and monoecious hemp (Cannabis sativa L.) |journal=Euphytica |year=2016 |volume=209 |issue=2 |pages=357–376 |doi=10.1007/s10681-016-1641-2}}</ref> The 2020 characterisation of the sex chromosomes described their location, age and degeneration but did not adjudicate between the two mechanisms.<ref name="prentout2020"/> Evidence from the sister genus ''[[wikipedia:Humulus|Humulus]]'' (hop) has sharpened the question without closing it: hop uses an X-to-autosome balance system driven by the dose of an X-linked ethylene-receptor gene, which raises the possibility of a shared mechanism across the two Cannabaceae genera even though the cannabis Y is large and the hop Y small.<ref name="akagi2025">{{cite journal |last=Akagi |first=T. |last2=Segawa |first2=T. |last3=Uchida |first3=R. |last4=Tanaka |first4=H. |last5=Shirasawa |first5=K. |last6=Yamagishi |first6=N. |title=Evolution and functioning of an X–A balance sex-determining system in hops |journal=Nature Plants |year=2025 |volume=11 |issue=7 |pages=1339–1352 |doi=10.1038/s41477-025-02017-6 |display-authors=etal}}</ref>

The XY system implies a primary sex ratio near 1:1, the expectation for a cross between an XX female and an XY male. Departures from an even male-to-female ratio in cultivation arise mainly from the lability of sex expression, discussed below, rather than from distorted chromosomal segregation.<ref name="owen2023"/>

== Sex expression and its modification ==

[[File:Cannabis-staminate-flowers-pollen.jpg|thumb|right|280px|alt=Macro photograph of a male cannabis inflorescence with clusters of pendant pale pollen sacs, some split open and releasing pollen.|Staminate (male) flowers shedding pollen. Silver thiosulfate can induce these on a genetically female plant; because that pollen carries only X chromosomes, it yields feminised seed.]]

A plant's chromosomal sex and the sex of the flowers it produces can be uncoupled. [[wikipedia:Plant hormone|Plant hormones]] exert opposite, directional control over flower sex: [[wikipedia:Ethylene|ethylene]], together with [[wikipedia:Cytokinin|cytokinins]] and [[wikipedia:Auxin|auxins]], promotes female flowering, while [[wikipedia:Gibberellin|gibberellins]] promote male flowering.<ref name="owen2023"/> This lets growers reverse the apparent sex of a genetically female plant. Treatment with [[wikipedia:Silver thiosulfate|silver thiosulfate]] or [[wikipedia:Silver nitrate|silver nitrate]] blocks the plant's perception of ethylene, so a genetically female plant forms functional male flowers and sheds viable pollen.<ref name="owen2023"/><ref name="mohanram1982">{{cite journal |last=Mohan Ram |first=H.Y. |last2=Sett |first2=R. |title=Induction of fertile male flowers in genetically female Cannabis sativa plants by silver nitrate and silver thiosulphate anionic complex |journal=Theoretical and Applied Genetics |year=1982 |volume=62 |issue=4 |pages=369–375 |doi=10.1007/BF00275107}}</ref>

Because the masculinised plant remains chromosomally XX, its pollen carries only X chromosomes; crossing that pollen onto a normal female produces XX offspring only. This is the basis of [[Feminized seeds|feminised seed]], which yields all-female crops without any male parent.<ref name="owen2023"/><ref name="mohanram1982"/> The commitment to a sexual pathway is made early, well before any visible floral dimorphism: differential gene expression between male and female apices is detectable from around the fourth node, and RNA-based studies find sex-biased expression already established at early vegetative stages, implicating [[wikipedia:Transcription factor|transcription-factor]] families as candidate regulators.<ref name="moliterni2004">{{cite journal |last=Moliterni |first=V.M.C. |last2=Cattivelli |first2=L. |last3=Ranalli |first3=P. |last4=Mandolino |first4=G. |title=The sexual differentiation of Cannabis sativa L.: a morphological and molecular study |journal=Euphytica |year=2004 |volume=140 |issue=1–2 |pages=95–106 |doi=10.1007/s10681-004-4758-7}}</ref><ref name="shi2025">{{cite journal |last=Shi |first=J. |last2=Toscani |first2=M. |last3=Dowling |first3=C.A. |last4=Schilling |first4=S. |last5=Melzer |first5=R. |title=Identification of genes associated with sex expression and sex determination in hemp (Cannabis sativa L.) |journal=Journal of Experimental Botany |year=2025 |volume=76 |issue=1 |pages=175–190 |doi=10.1093/jxb/erae429}}</ref>

[[File:Cannabis-sex-expression-hormonal-control.jpg|thumb|right|280px|alt=Flow diagram showing ethylene promoting female flowers and gibberellin promoting male flowers, with silver thiosulfate blocking ethylene perception to turn a female plant male, whose X-only pollen yields all-female seed.|Hormonal control of sex expression. Ethylene favours female flowers and gibberellin male flowers; silver thiosulfate blocks ethylene perception, inducing male flowers on a genetically female (XX) plant. Because that pollen carries only X chromosomes, the resulting seed is all-female.]]

== Molecular identification of sex ==

[[File:Cannabis-sex-molecular-assay.jpg|thumb|right|280px|alt=Schematic of a PCR sexing assay in which a single primer pair amplifies an X-linked and a Y-linked copy of one gene, producing one band in a female XX lane and two bands in a male XY lane on a gel.|A modern PCR assay reports chromosomal sex before flowering: a single primer pair targets a gene that differs between the X and Y copies, so females (XX) and males (XY) give distinguishable band patterns. This resolves the false-positive problem of the earlier male-associated markers.]]

Adult male and female plants are readily told apart by their flowers, but before flowering they are not visually distinguishable, and because chemical or environmental treatment alters the flowers without altering the chromosomes, only a DNA test reports true chromosomal sex.<ref name="rierabegue2025"/> The first practical [[genetic marker|markers]] were male-associated sequences recovered by [[wikipedia:RAPD|RAPD]] screening and then converted to more reproducible sequence-characterised (SCAR) markers: a male-associated band present across cultivars was stabilised into a male-specific SCAR for early identification of male plants.<ref name="mandolino1999">{{cite journal |last=Mandolino |first=G. |last2=Carboni |first2=A. |last3=Forapani |first3=S. |last4=Faeti |first4=V. |last5=Ranalli |first5=P. |title=Identification of DNA markers linked to the male sex in dioecious hemp (Cannabis sativa L.) |journal=Theoretical and Applied Genetics |year=1999 |volume=98 |issue=1 |pages=86–92 |doi=10.1007/s001220051043}}</ref> Further male-associated markers followed, including the retrotransposon-derived MADC markers and additional male-specific loci.<ref name="sakamoto2005"/><ref name="torjek2002">{{cite journal |last=Törjék |first=O. |last2=Bucherna |first2=N. |last3=Kiss |first3=E. |last4=Homoki |first4=H. |last5=Finta-Korpelová |first5=Z. |last6=Bócsa |first6=I. |last7=Nagy |first7=I. |last8=Heszky |first8=L.E. |title=Novel male-specific molecular markers (MADC5, MADC6) in hemp |journal=Euphytica |year=2002 |volume=127 |issue=2 |pages=209–218 |doi=10.1023/A:1020204729122}}</ref>

These early markers are male-''associated'', not strictly Y-unique, so the underlying sequences can occur at low frequency in females and the markers give occasional false positives; their frequency across accessions has itself been surveyed.<ref name="mandolino1999"/><ref name="mandolino2002">{{cite journal |last=Mandolino |first=G. |last2=Carboni |first2=A. |last3=Bagatta |first3=M. |last4=Moliterni |first4=V.M.C. |last5=Ranalli |first5=P. |title=Occurrence and frequency of putatively Y chromosome linked DNA markers in Cannabis sativa L. |journal=Euphytica |year=2002 |volume=126 |issue=2 |pages=211–218 |doi=10.1023/A:1016382128401}}</ref> More recent methods target a gene that differs between the X and Y copies, allowing a single [[wikipedia:Primer (molecular biology)|primer pair]] to distinguish XX from XY directly; one such assay resolved sex across several hundred samples of varied tissue and developmental stage at full accuracy, giving reliable identification well before flowering.<ref name="rierabegue2025"/>

== Significance ==

[[File:Cannabis-all-female-crop.jpg|thumb|right|280px|alt=Rows of uniform flowering cannabis plants, all bearing dense stigma-covered inflorescences and no pollen sacs.|An all-female crop grown from feminised seed. Because cannabinoids concentrate in the unpollinated female inflorescence, cannabinoid and drug-type crops are grown without males.]]

Sex determination underlies several practical concerns in cannabis cultivation and breeding. Feminised seed, produced by masculinising genetic females, gives the all-female crops on which cannabinoid production depends, since cannabinoids concentrate in the unpollinated female inflorescence.<ref name="owen2023"/><ref name="rierabegue2025"/> Monoecious hemp, all chromosomally female and flowering more uniformly than a dioecious stand, is bred by selecting on the quantitative degree of monoecy, a task molecular markers assist by letting breeders act on sex genotype directly.<ref name="faux2014"/><ref name="petit2020"/> Early molecular sexing conserves labour and growing space by allowing unwanted males to be removed at the seedling stage.<ref name="mandolino1999"/><ref name="rierabegue2025"/>

Cannabis is often compared with its sister genus ''Humulus'' (hop): both Cannabaceae genera are dioecious with an XY male, but they differ in the size and content of the Y and, on current evidence, in how sex is specified: hop through an X-to-autosome dosage system with a small Y, cannabis through an enlarged, repeat-laden Y whose determining mechanism remains open.<ref name="akagi2025"/><ref name="divashuk2014"/> For landrace conservation, the obligate outcrossing imposed by dioecy is itself consequential: it sustains [[heterozygosity]] and [[gene flow]] within a population but means a landrace cannot be maintained true from a single plant, so ''[[Ex situ conservation|ex situ]]'' holdings must sample enough individuals of both sexes to keep the [[effective population size]] adequate and retain the population's diversity.

== See also ==

* [[Sex expression]]
* [[Feminized seeds]]
* [[Cannabis genome]]
* [[Cannabis genetics]]

== References ==

<references />

[[Category:Sex Determination]]

Feral and ruderal Cannabis

Eloise Zomia — Sun, 05 Jul 2026 15:59:13 GMT

Eloise Zomia: Link-enrichment pass (botany-author audit 2026-07-06): +18 internal + interwiki links, sister-article consistency with Cannabis ruderalis

{{Botany series|image=Haldibari-Feral-Cannabis-Plant.jpg
|alt=Feral cannabis growing in an empty lot
|caption=Feral Cannabis growing in an empty lot in [[Haldibari]], [[West Bengal]] - [[India]]}}

'''Feral and ruderal ''Cannabis''''' refers to populations of the cannabis plant (''[[Cannabis sativa]]'') that grow outside [[Cannabis cultivation|cultivation]], whether as escapes from former hemp or drug growing that have become self-perpetuating (feral) or as colonisers of ground disturbed by human activity (ruderal). In ''Cannabis'' the two descriptions overlap heavily: most naturalised stands are both feral in origin and ruderal in habit, and the same populations are often labelled by either term.<ref name="small2003">{{cite journal |last=Small |first=E. |last2=Pocock |first2=T. |last3=Cavers |first3=P.B. |year=2003 |title=The biology of Canadian weeds. 119. Cannabis sativa L. |journal=Canadian Journal of Plant Science |volume=83 |issue=1 |pages=217–237 |doi=10.4141/P02-021}}</ref><ref name="clarke2013">{{cite book |last=Clarke |first=R.C. |last2=Merlin |first2=M.D. |year=2013 |title=Cannabis: Evolution and Ethnobotany |publisher=University of California Press |location=Berkeley}}</ref>

Ruderal is an ecological category, a [[wikipedia:Ruderal species|ruderal species]] being one that colonises disturbed, nutrient-rich and open ground, while feral is a statement of origin, a [[domestication|domesticate]] that has reverted to unmanaged growth.<ref name="small2003" /><ref name="ellstrand2010">{{cite journal |last=Ellstrand |first=N.C. |last2=Heredia |first2=S.M. |last3=Leak-Garcia |first3=J.A. |last4=Heraty |first4=J.M. |last5=Burger |first5=J.C. |display-authors=etal |year=2010 |title=Crops gone wild: evolution of weeds and invasives from domesticated ancestors |journal=Evolutionary Applications |volume=3 |issue=5–6 |pages=494–504 |doi=10.1111/j.1752-4571.2010.00140.x |doi-access=free}}</ref> Populations of this kind tend to re-acquire or retain a wild-type syndrome of small stature, sparse branching, [[wikipedia:Seed dormancy|seed dormancy]] and readily shattering achenes that sets them apart from the crop they descend from.<ref name="mcpartlandsmall2020">{{cite journal |last=McPartland |first=J.M. |last2=Small |first2=E. |year=2020 |title=A classification of endangered high-THC cannabis (Cannabis sativa subsp. indica) domesticates and their wild relatives |journal=PhytoKeys |volume=144 |pages=81–112 |doi=10.3897/phytokeys.144.46700 |doi-access=free}}</ref><ref name="small2015">{{cite journal |last=Small |first=E. |year=2015 |title=Evolution and classification of Cannabis sativa (marijuana, hemp) in relation to human utilization |journal=Botanical Review |volume=81 |issue=3 |pages=189–294 |doi=10.1007/s12229-015-9157-3}}</ref>

This article treats feral and ruderal ''Cannabis'' as an ecological and population phenomenon. The formal taxon to which the wild and weedy plants of temperate Eurasia have been referred, and its contested nomenclatural history, are covered separately under ''[[Cannabis ruderalis]]''.<ref name="mcpartlandguy2017">{{cite journal |last=McPartland |first=J.M. |last2=Guy |first2=G.W. |year=2017 |title=Models of Cannabis taxonomy, cultural bias, and conflicts between scientific and vernacular names |journal=Botanical Review |volume=83 |issue=4 |pages=327–381 |doi=10.1007/s12229-017-9187-0}}</ref> Such populations matter as reservoirs of [[genetic diversity|genetic variation]] outside the cultivated [[gene pool]], as the source of the day-neutral ([[Autoflowering|autoflowering]]) trait now common in hybrid cultivars, and as agricultural volunteers and weeds, the low-[[Cannabinoid|cannabinoid]] feral hemp of North America (known as "ditchweed") being the most widespread example.<ref name="lynch2025">{{cite journal |last=Lynch |first=R.C. |last2=Padgitt-Cobb |first2=L.K. |last3=Garfinkel |first3=A.R. |last4=Knaus |first4=B.J. |last5=Hartwick |first5=N.T. |display-authors=etal |year=2025 |title=Domesticated cannabinoid synthases amid a wild mosaic cannabis pangenome |journal=Nature |volume=643 |issue=8073 |pages=1001–1010 |doi=10.1038/s41586-025-09065-0}}</ref><ref name="aina2025">{{cite journal |last=Aina |first=A. |last2=Wenger |first2=J.P. |last3=Stanton |first3=E. |last4=Majumdar |first4=C.G. |last5=ElSohly |first5=M. |display-authors=etal |year=2025 |title=Genetic diversity, population structure, and cannabinoid variation in feral Cannabis sativa germplasm from the United States |journal=Scientific Reports |volume=15 |issue=1 |article-number=20423 |doi=10.1038/s41598-025-07912-8 |doi-access=free}}</ref><ref name="clarke2013" />

== Terminology ==

The words feral, ruderal, wild and weedy describe different aspects of a plant population and are not interchangeable, although in ''Cannabis'' they frequently coincide.<ref name="small2003" />

A '''ruderal''' plant establishes on ground disturbed by human activity or natural agents: road verges, riverbanks, waste ground, field margins, demolition sites and rubbish tips. ''Cannabis'' is a textbook ruderal. It is a nitrophile that grows vigorously on disturbed, well-manured, moist and open soils, and it has long been described as a "camp follower" that spread with the enriched and broken ground around human settlement.<ref name="small2003" /><ref name="clarke2013" /><ref name="mcpartland2019">{{cite journal |last=McPartland |first=J.M. |last2=Hegman |first2=W. |last3=Long |first3=T. |year=2019 |title=Cannabis in Asia: its center of origin and early cultivation, based on a synthesis of subfossil pollen and archaeobotanical studies |journal=Vegetation History and Archaeobotany |volume=28 |issue=6 |pages=691–702 |doi=10.1007/s00334-019-00731-8}}</ref> In a review of wild-growing hemp, most stands were found on ground with a history of soil disturbance, and the large majority occupied field borders, waste places and other anthropogenic sites rather than undisturbed vegetation.<ref name="small2003" />

A '''feral''' population descends from cultivated plants but has escaped management and reproduces on its own.<ref name="ellstrand2010" /> Feral ''Cannabis'' arises when hemp or drug cultivation is abandoned, or when seed disperses beyond the field, after which the population persists without further sowing.<ref name="clarke2013" /><ref name="aina2025" /> Because ''Cannabis'' was cultivated across Eurasia for millennia, separating genuinely '''wild''' plants, meaning populations never taken into cultivation, from feral descendants of former crops is difficult, and whether any truly wild ''Cannabis'' survives is contested.<ref name="clarke2013" /><ref name="small2015" /><ref name="mcpartland2019" /> [[Nikolai Vavilov|Vavilov]] applied the name ''C. sativa'' var. ''spontanea'' to the wild and weedy plants he collected in Central Asia and south-eastern Europe, a designation that left open whether they were primary wild plants or ancient escapes.<ref name="vavilov1922">{{cite journal |last=Vavilov |first=N.I. |year=1922 |title=The geographical origin of the cultivated plants |journal=Trudy po Prikladnoi Botanike i Selektsii |volume=13 |pages=1–44}}</ref><ref name="mcpartlandguy2017" />

'''Weedy''' overlaps with both categories: a weed is a plant growing where it is not wanted, and feral ''Cannabis'' is an agricultural weed across parts of its range.<ref name="small2003" /> The distinctions matter for conservation and management, because a genuinely wild population, a feral escape and a crop volunteer carry different genetic value and call for different responses.<ref name="mcpartlandsmall2020" /><ref name="ellstrand2010" />

== Feralisation ==

[[File:Cannabis-feralisation-pathways.jpg|thumb|right|320px|alt=Flow diagram with a cultivated crop box and a wild relative box; the crop leads directly to a feral population box, and both crop and wild relative feed a crop-by-wild hybrid box that also leads to the feral population.|Two routes to feral ''Cannabis'': direct escape of a crop (endoferality) and escape via crop–wild hybrids (exoferality). Feral populations reacquire wild-type traits such as seed shattering and dormancy.]]

Feralisation, or de-domestication, is the process by which a cultivated population escapes management and re-acquires wild characteristics under [[natural selection]].<ref name="ellstrand2010" /> Ellstrand and colleagues (2010) separate feral populations that arise directly from crop varieties (endoferality) from those that arise through crossing between a crop and a wild relative (exoferality), and record that well-documented examples across all crops are few.<ref name="ellstrand2010" />

[[File:Cannabis-wild-type-vs-domesticated-achene.jpg|thumb|left|300px|alt=Two cannabis seeds side by side: a small mottled wild-type achene with a papery clasping covering and a basal break-point, and a larger smooth pale domesticated achene without either.|Feralisation reverses part of the domestication syndrome. Feral populations recover the wild-type achene: small, camouflaged by a persistent perianth and shed by a well-developed abscission zone that drives [[Seed morphology|seed shattering]].]]

In ''Cannabis'', feralisation reverses part of the domestication syndrome. Cultivated hemp and drug plants were selected for uniform, often taller and less-branched growth, larger and more retentive achenes and, in drug plants, high cannabinoid content; feral populations drift back toward small stature, smaller achenes bearing a persistent perianth and a well-developed abscission zone that promotes shattering, and reduced cannabinoid content.<ref name="mcpartlandsmall2020" /><ref name="small2015" /><ref name="clarke2013" /> Strongly shattering achenes camouflaged by a persistent perianth are the principal wild-type signature in the genus and the trait most consistently recovered in feral stands.<ref name="mcpartlandsmall2020" /><ref name="mcpartlandguy2017" />

The genetics of feralisation in ''Cannabis'' has begun to be examined directly. Woods and colleagues (2023) compared feral and domesticated lineages of ''C. sativa'' with genome-wide markers and identified regions carrying signatures of selection that differ between the two, consistent with continued adaptation of feral populations to unmanaged conditions.<ref name="woods2023">{{cite journal |last=Woods |first=P. |last2=Price |first2=N. |last3=Matthews |first3=P. |last4=McKay |first4=J.K. |year=2023 |title=Genome-wide polymorphism and genic selection in feral and domesticated lineages of Cannabis sativa |journal=G3 |volume=13 |issue=2 |article-number=jkac209 |doi=10.1093/g3journal/jkac209 |doi-access=free}}</ref> Whole-genome data also show that day-neutral flowering, characteristic of ruderal populations, behaves as a trait derived from wild or feral plants rather than from the cultivated crop.<ref name="lynch2025" />

== Ruderal ecology ==

{{main|Cannabis ecology}}



As a ruderal, ''Cannabis'' depends on disturbance and high soil fertility and competes poorly in closed, undisturbed vegetation.<ref name="small2003" /> Ruderal populations combine rapid growth, high seed output, [[Pollination biology|wind pollination]] and [[Dioecy|dioecious]] breeding with seed dormancy and a persistent [[wikipedia:Soil seed bank|soil seed bank]], so that a stand can regenerate after years unfavourable to establishment.<ref name="small2003" /><ref name="clarke2013" /> Much of the small stature of ruderal plants reflects [[phenotypic plasticity]], plants adjusting size and form to poor conditions, so that habit alone is an unreliable guide to whether a population is wild, feral or a stunted escape.<ref name="small2015" /><ref name="clarke2013" />

The habitats and range of feral populations can be modelled from occurrence records. Ford and colleagues (2024) built [[wikipedia:Species distribution modelling|ecological niche models]] for feral ''C. sativa'' in the midwestern United States from digitised [[wikipedia:Herbarium|herbarium]] and observation records, finding its distribution structured by climate and by disturbed, riparian and agricultural land associated with former hemp growing.<ref name="ford2024">{{cite journal |last=Ford |first=T. |last2=Aina |first2=A. |last3=Ellison |first3=S. |last4=Gordon |first4=T. |last5=Stansell |first5=Z. |year=2024 |title=Utilizing digitized occurrence records of Midwestern feral Cannabis sativa to develop ecological niche models |journal=Ecology and Evolution |volume=14 |issue=7 |article-number=e11325 |doi=10.1002/ece3.11325 |doi-access=free}}</ref> In the [[Himalayas|western Himalayas]], feral drug-type ''Cannabis'' colonises roadsides, cultivated terraces and settlement fringes, and Jehangir and colleagues (2024) linked its continued spread to disturbance, moisture and soil nutrients along an altitudinal gradient.<ref name="jehangir2024">{{cite journal |last=Jehangir |first=S. |last2=Khan |first2=S.M. |last3=Ahmad |first3=Z. |last4=Ejaz |first4=U. |last5=Ul Ain |first5=Q. |display-authors=etal |year=2024 |title=Distribution of the Cannabis sativa L. in the Western Himalayas: a tale of the ecological factors behind its continuous invasiveness |journal=Global Ecology and Conservation |volume=49 |article-number=e02779 |doi=10.1016/j.gecco.2023.e02779 |doi-access=free}}</ref>

== Distribution ==



Feral and ruderal populations occur across much of the temperate and subtropical range of ''Cannabis''. Three concentrations are comparatively well documented: feral fibre hemp in North America, the wild and weedy belt of temperate Eurasia, and feral drug-type ''Cannabis'' in southern and Central Asia.<ref name="clarke2013" /><ref name="small2015" />

=== North America ===

[[File:Cannabis-fibre-hemp-cultivar-field.jpg|thumb|right|300px|alt=A cultivated field of tall, even-height fibre hemp plants grown close together in rows.|Industrial fibre-hemp cultivation of the kind grown across North America into the twentieth century. Escapes from such fields founded the feral "ditchweed" populations that persist across the Midwest.]]

North American feral hemp descends from fibre-hemp cultivation of the eighteenth to twentieth centuries, including the wartime expansion of the 1940s, after which abandoned crops left escaped populations that persist on disturbed ground, most densely in the Midwest, where they are known as "ditchweed".<ref name="clarke2013" /><ref name="aina2025" /> These plants are of the fibre type and low in [[Tetrahydrocannabinol|THC]].<ref name="aina2025" /> Aina and colleagues (2025) characterised feral ''C. sativa'' germplasm collected across the United States and found it genetically distinct from other ''C. sativa'', divided into several regional clusters and most similar to older European fibre landraces, a pattern consistent with descent from historically cultivated hemp followed by regional differentiation.<ref name="aina2025" /> Feral hemp is widespread and persistent enough to have been a routine target of official [[eradication]] programmes, despite its negligible drug value.<ref name="clarke2013" /><ref name="small2015" />

=== Eurasia ===

The continental temperate zone of Eurasia carries extensive wild and weedy ''Cannabis'', from the lower Volga basin, where the ''[[Cannabis ruderalis|ruderalis]]'' form was first described, across western Siberia, [[Central Asia]] and the [[Caucasus]] and through Eastern Europe.<ref name="clarke2013" /><ref name="mcpartlandguy2017" /> Whether these are primary wild populations or ancient feral escapes is unresolved and probably differs from place to place.<ref name="mcpartland2019" /><ref name="small2015" /> An [[wikipedia:Alloenzyme|allozyme]] survey by Hillig (2005) found that ruderal and feral accessions from Eastern Europe and the former Soviet Union clustered with the cultivated hemp gene pool rather than forming a separate group, which fits a feral rather than distinct-wild origin for much of this material.<ref name="hillig2005">{{cite journal |last=Hillig |first=K.W. |year=2005 |title=Genetic evidence for speciation in Cannabis (Cannabaceae) |journal=Genetic Resources and Crop Evolution |volume=52 |issue=2 |pages=161–180 |doi=10.1007/s10722-003-4452-y}}</ref> [[wikipedia:Phylogeography|Phylogeographic]] work by Balant and colleagues (2025) placed ruderal Eurasian accessions mainly within a broad Boreal genetic group without an exclusive cluster, feral plants resembling nearby cultivated material more than ruderal plants of other regions.<ref name="balant2025">{{cite journal |last=Balant |first=M. |last2=Vitales |first2=D. |last3=Wang |first3=Z. |last4=Barina |first4=Z. |last5=Fu |first5=L. |display-authors=etal |year=2025 |title=Integrating target capture with whole genome sequencing of recent and natural history collections to explain the phylogeography of wild-growing and cultivated cannabis |journal=Plants, People, Planet |volume=7 |issue=6 |pages=1771–1788 |doi=10.1002/ppp3.70043 |doi-access=free}}</ref> This geographic rather than lineage-based structure is the pattern expected from recurrent local feralisation, and is compatible with the wider genomic evidence for a single ''C. sativa'' with infraspecific structure.<ref name="balant2025" /><ref name="lynch2025" />

=== Southern and Central Asia ===

In the drug-cannabis regions of southern and Central Asia, feral and weedy stands occur around cultivated areas and along disturbed corridors. Naturalised drug-type ''Cannabis'' is widespread in the western Himalayas on roadsides, terraces and settlement margins, where it behaves as an aggressive coloniser of broken ground.<ref name="jehangir2024" /><ref name="clarke2013" /> These populations grade into the cultivated [[Landrace Cannabis|landraces]] of the same regions through [[gene flow]], which further blurs the line between wild, feral and cultivated material.<ref name="clarke2013" /><ref name="small2015" />

== Relationship to cultivated Cannabis ==

Feral, ruderal and cultivated ''Cannabis'' are interfertile and exchange genes wherever they meet.<ref name="clarke2013" /> Genes move in both directions through [[introgression]]: cultivated alleles enter feral populations near fields, while feral and wild alleles enter the crop, a two-way [[gene flow]] that accounts for both the genetic-resource value and the contamination risk of wild-growing populations.<ref name="clarke2013" /><ref name="lynch2025" />

The clearest instance of feral-to-crop transfer is day-neutral flowering. The [[Autoflowering|autoflowering]] habit of modern hybrid drug cultivars derives from the day-neutral character of ruderal populations, crossed into cultivated backgrounds since the 1980s; genomic analysis shows that autoflowering cultivars carry the trait against a genome otherwise dominated by cultivated drug ''Cannabis'', with only a small fraction traceable to the ruderal source.<ref name="lynch2025" /> The breeders' label "ruderalis" for these cultivars therefore denotes the day-neutral character and its origin rather than a botanical taxon.<ref name="mcpartlandguy2017" /><ref name="lynch2025" /> The trait and its use are treated further under ''[[Cannabis ruderalis]]''.

In the other direction, feral hemp is a source of stray pollen that can reach nearby hemp or drug crops and affect their cannabinoid content and seed set, one reason feral populations are viewed as an agronomic problem as much as a genetic resource.<ref name="aina2025" /><ref name="clarke2013" />

== Conservation and management ==

Feral and ruderal populations sit awkwardly between resource and nuisance.<ref name="small2015" /> As a genetic resource they hold variation that has been lost from, or never captured in, the cultivated [[gene pool|gene pools]], including alleles for [[Abiotic stress tolerance|stress tolerance]], [[Pathogens and disease|disease resistance]] and day-neutral flowering.<ref name="mcpartlandsmall2020" /><ref name="lynch2025" /> McPartland and Small (2020) note that the wild-growing relatives of drug ''Cannabis'' in Central Asia and the Himalayas are threatened by [[genetic contamination|hybridisation]] with introduced high-THC cultivars and by eradication, and argue for their formal recognition and conservation; comparable feral hemp populations elsewhere have drawn far less attention.<ref name="mcpartlandsmall2020" /> Because the boundary between wild, feral and cultivated ''Cannabis'' is unclear, deciding which populations count as [[genetic resources|conservation-worthy germplasm]] is itself contested, and the standard options of [[in situ conservation|in situ protection]] and [[ex situ conservation|ex situ storage]] in [[gene bank|gene banks]] depend on that judgement.<ref name="mcpartlandsmall2020" /><ref name="small2015" />

As a management problem, feral hemp behaves as a persistent volunteer. Its soil seed bank and ruderal habit let it reappear on disturbed ground for years after cultivation ends, and feral stands have been targeted by eradication programmes despite their negligible drug content.<ref name="small2003" /><ref name="clarke2013" /> Escaped domesticates that become weeds or [[wikipedia:Invasive species|invasives]] are a general reason given for caution in crop management, and ''Cannabis'' is among the examples cited.<ref name="ellstrand2010" />

== See also ==

* ''[[Cannabis ruderalis]]''
* [[Cannabis ecology]]
* [[Autoflowering]]
* [[Landrace Cannabis]]
* [[Centre of origin]]
* [[Cannabis taxonomy]]
* [[Genetic contamination]]
* [[Seed morphology]]
* [[Glossary of Cannabis botany]]
* [[Portal:Botany]]

== References ==

<references />

[[Category:Cannabis Ecology]]

Cultivar

Eloise Zomia — Sun, 05 Jul 2026 10:59:06 GMT

Eloise Zomia:

{{Botany series|image=sam-the-skunkman.jpg
|alt= Sam the Skunkman pictured with Cannabis plants in the background
|caption=[[Sam the Skunkman:]] breeder of Skunk No. 1 }}

A '''cultivar''' is a group of cultivated plants selected for particular characteristics and able to keep those characteristics when propagated by defined means. The word, a contraction of "cultivated variety", is governed by the ''International Code of Nomenclature for Cultivated Plants'' (ICNCP), which treats a cultivar as the basic unit of classification for plants in cultivation and requires it to be distinct from other cultivars, uniform in its selected traits and stable, so that those traits persist through the propagation used to maintain it.<ref name="icncp">{{cite book |editor-last=Brickell |editor-first=C.D. |editor2-last=Alexander |editor2-first=C. |editor3-last=Cubey |editor3-first=J.J. |editor4-last=David |editor4-first=J.C. |editor5-last=Hoffman |editor5-first=M.H.A. |editor6-last=Leslie |editor6-first=A.C. |editor7-last=Malécot |editor7-first=V. |editor8-last=Jin |editor8-first=X. |title=International Code of Nomenclature for Cultivated Plants |edition=9th |series=Scripta Horticulturae |volume=18 |publisher=International Society for Horticultural Science |year=2016}}</ref> A cultivar name pairs the botanical name with a cultivar epithet, as in ''Cannabis'' 'Finola'.

In ''[[Cannabis sativa|Cannabis]]'' the cultivar sits among several overlapping ways of naming plant groups that are often confused. It differs from a [[Landrace Cannabis|landrace]], a locally adapted population maintained by farmers without formal selection; from a botanical [[Cannabis taxonomy|variety]], a rank of the wild-plant nomenclatural code applied to naturally occurring forms; from the vernacular ''[[Cannabis strain|strain]]'', a market term with no standing in either code; and from a [[Chemotype|chemovar]], a grouping by measured [[cannabinoid]] and [[terpene]] chemistry rather than by breeding history. Most ''Cannabis'' sold as named "strains" has never been registered or verified as a cultivar, and genetic studies have repeatedly found that shared names do not guarantee shared ancestry.

Whether a plant group qualifies as a cultivar carries practical weight. It determines how the group can be protected under [[wikipedia:Plant breeders' rights|plant breeders' rights]], how reliably a grower can reproduce it, and how conservation programmes weigh it against the landraces from which cultivars are ultimately drawn.

== Definition and nomenclature ==

[[File:Cannabis-cultivar-name-structure.jpg|thumb|right|300px|alt=The name Cannabis sativa 'Carmagnola' with genus, species and cultivar epithet each labelled.|A cultivar name joins the italic botanical name to a capitalised cultivar epithet in single quotation marks; the epithet is a modern-language word rather than botanical Latin.]]

The cultivar concept applies to plants whose distinguishing features are held in place by cultivation rather than by natural range. Under the ICNCP a cultivar must be distinguishable from any other cultivar by one or more characters, uniform in those characters within the limits of its breeding system, and stable, so that the characters survive the cycles of propagation used to reproduce it.<ref name="icncp"/><ref name="pollio2016">{{cite journal |last=Pollio |first=Antonino |title=The name of ''Cannabis'': a short guide for nonbotanists |journal=Cannabis and Cannabinoid Research |year=2016 |volume=1 |issue=1 |pages=234–238 |doi=10.1089/can.2016.0027}}</ref> Those requirements can be met by very different kinds of plant group: a seed-propagated line bred to a fixed type, a single clone multiplied from cuttings, or the controlled cross of two parent lines remade each generation to give a uniform result.

A cultivar is named by attaching a cultivar epithet to the name of the genus or species. The epithet is written in roman type inside single quotation marks with each word capitalised, as in ''Cannabis'' 'Finola' or ''Cannabis sativa'' 'Carmagnola'. Under the code, epithets coined since 1959 must be in a modern language rather than Latin, and those coined since 1996 are limited in length, which is why recent names read as ordinary words instead of botanical Latin.<ref name="pollio2016"/> Where several cultivars share a defined character they may be gathered into a cultivar Group, a formal category the code provides for the broad, loose assemblages that growers describe as a "family" or "line".<ref name="small2015">{{cite journal |last=Small |first=Ernest |title=Evolution and classification of ''Cannabis sativa'' (marijuana, hemp) in relation to human utilization |journal=The Botanical Review |year=2015 |volume=81 |issue=3 |pages=189–294 |doi=10.1007/s12229-015-9157-3}}</ref>

This apparatus is separate from the botanical ranks used for wild plants. The ''[[wikipedia:International Code of Nomenclature for algae, fungi, and plants|International Code of Nomenclature for algae, fungi, and plants]]'' governs categories such as subspecies, variety (''varietas'') and forma, which describe naturally occurring variation and are anchored to [[wikipedia:Herbarium|herbarium]] [[wikipedia:Type (biology)|type specimens]]. A cultivar is instead defined by human selection and documented by a standard description rather than a type specimen.<ref name="mcpartlandsmall2020">{{cite journal |last1=McPartland |first1=John M. |last2=Small |first2=Ernest |title=A classification of endangered high-THC cannabis (''Cannabis sativa'' subsp. ''indica'') domesticates and their wild relatives |journal=PhytoKeys |year=2020 |volume=144 |pages=81–112 |doi=10.3897/phytokeys.144.46700}}</ref><ref name="pollio2016"/> The word "variety" bridges the two codes and so invites confusion: in agriculture and plant-protection law a variety is in effect a cultivar, the unit a breeder registers, whereas in botany a variety is the wild-plant rank ''varietas''. The two are set by different processes, and a single ''Cannabis'' plant can answer to both, belonging to the botanical variety ''indica'' while also, if bred to a stable type and registered, carrying a cultivar name.

== Cultivar, landrace and botanical variety ==

[[File:Cannabis-cultivar-vs-landrace-uniformity.png|thumb|left|320px|alt=A varied population of differing plants on the left beside a block of near-identical plants on the right.|A landrace keeps plant-to-plant variation (left); a cultivar is selected and propagated to a uniform, repeatable type (right).]]

The three formal ways of grouping ''Cannabis'' plants differ less in the plants themselves than in how the groups are made and kept. A [[Landrace Cannabis|landrace]] is a population that has adapted to a locality over generations of [[Cannabis cultivation|cultivation]] and reselection by farmers; because selection is loose and [[Pollination biology|pollination]] largely open, it stays internally diverse and is recognised as a population, not as a single repeatable type.<ref name="zeven">{{cite journal |last=Zeven |first=A.C. |title=Landraces: a review of definitions and classifications |journal=Euphytica |year=1998 |volume=104 |issue=2 |pages=127–139 |doi=10.1023/A:1018683119237}}</ref><ref name="camachovilla">{{cite journal |last1=Camacho Villa |first1=T.C. |last2=Maxted |first2=N. |last3=Scholten |first3=M. |last4=Ford-Lloyd |first4=B. |title=Defining and identifying crop landraces |journal=Plant Genetic Resources |year=2005 |volume=3 |issue=3 |pages=373–384 |doi=10.1079/PGR200591}}</ref> That variability is not a defect but the mechanism by which a landrace keeps adapting to its place, and it is exactly what a cultivar gives up.<ref name="clarke2013">{{cite book |last1=Clarke |first1=Robert C. |last2=Merlin |first2=Mark D. |title=Cannabis: Evolution and Ethnobotany |publisher=University of California Press |year=2013 |isbn=978-0-520-27048-0}}</ref>

A cultivar is the outcome of tightening that process. Deliberate selection, controlled pollination and a defined propagation method narrow a variable population down to a uniform, repeatable product.<ref name="clarke2013"/><ref name="small2015"/> The uniformity gained is also diversity lost, and that standing variation is what lets a landrace track a changing environment, a trade-off that underlies why landraces and cultivars are conserved differently (see [[#Conservation implications|below]]).

The botanical variety occupies a third position. It is a rank of the wild-plant code applied to naturally occurring forms set apart by heritable morphology and geography, such as the narrow-leaflet and broad-leaflet drug plants that a widely cited revision assigns to ''[[Cannabis sativa]]'' subspecies ''indica''.<ref name="mcpartlandsmall2020"/><ref name="small2015"/> A botanical variety is not the product of a breeding programme, and naming one implies nothing about uniformity in the horticultural sense. The same population can therefore be described three ways over its history: as a wild or weedy botanical variety, as the landrace that farmers select from it, and as the cultivar eventually bred out of that landrace.

{| class="wikitable"
|+ Ways of grouping ''Cannabis'' plants
! Grouping !! Governing code !! Basis of the group !! Within-group uniformity !! Maintained by !! Example
|-
| Cultivar || ICNCP || deliberate human selection || high; distinct, uniform, stable || defined seed or clonal propagation || ''Cannabis'' 'Finola'
|-
| Botanical variety (''varietas'') || wild-plant code (ICN) || heritable morphology and geography || not implied || natural reproduction in range || ''C. sativa'' subsp. ''indica'' var. ''afghanica''
|-
| Landrace || none; informal || local adaptation under farmer selection || low to moderate; variable by design || farmer seed-saving and reselection || [[Hindu Kush]] [[charas]] landraces
|-
| "Strain" || none; vernacular || market and consumer naming || none guaranteed || commercial seed or clone lines || "OG Kush"
|-
| Chemovar / chemotype || none; chemical || measured cannabinoid and terpene profile || chemical, not genetic, by definition || re-measurement of chemistry || Type I, THC-dominant
|}

== "Strain" as a vernacular term ==
The word most consumers use, ''[[Cannabis strain|strain]]'', has no standing in either nomenclatural code. It is borrowed from microbiology, where it denotes a genetic line of a [[wikipedia:Microorganism|microorganism]], and applied loosely to named ''Cannabis'' products.{{citation needed}} Its survival is commercial rather than botanical, and the names attached to it are not backed by the distinctness, uniformity and stability that a cultivar name asserts.<ref name="schwabe2019">{{cite journal |last1=Schwabe |first1=Anna L. |last2=McGlaughlin |first2=Mitchell E. |title=Genetic tools weed out misconceptions of strain reliability in ''Cannabis sativa'': implications for a budding industry |journal=Journal of Cannabis Research |year=2019 |volume=1 |issue=1 |pages=3 |doi=10.1186/s42238-019-0001-1}}</ref>

Genetic surveys have shown how weakly these names track ancestry. A study genotyping marijuana and hemp found that plants sold under the same strain name were in some pairings less alike than plants carrying different names, and that a strain's advertised split between "sativa" and "indica" corresponded only weakly to its measured genome-wide ancestry.<ref name="sawler2015">{{cite journal |last1=Sawler |first1=Jason |last2=Stout |first2=Jake M. |last3=Gardner |first3=Kyle M. |last4=Hudson |first4=Darryl |last5=Vidmar |first5=John |last6=Butler |first6=Laura |last7=Page |first7=Jonathan E. |last8=Myles |first8=Sean |title=The genetic structure of marijuana and hemp |journal=PLOS ONE |year=2015 |volume=10 |issue=8 |pages=e0133292 |doi=10.1371/journal.pone.0133292}}</ref> A later study using a larger marker set recovered the same pattern, with samples of a single named strain sometimes resolving into distinct genetic clusters, an outcome consistent with the same name being applied by different growers to unrelated plants.<ref name="schwabe2019"/> Because the crop has sat outside the variety-registration systems that certify other horticultural plants, a buyer has had no independent authority to appeal to: the label is the only claim, and nothing tests it.<ref name="schwabe2019"/>

Chemical data point the same way. A survey of tens of thousands of commercial samples found the great majority to be THC-dominant whatever the "sativa", "indica" or "hybrid" label they carried, and resolved only a few recurring terpene profiles that likewise crossed the label boundaries.<ref name="smith2022">{{cite journal |last1=Smith |first1=Christiana J. |last2=Vergara |first2=Daniela |last3=Keegan |first3=Brian |last4=Jikomes |first4=Nick |title=The phytochemical diversity of commercial ''Cannabis'' in the United States |journal=PLOS ONE |year=2022 |volume=17 |issue=5 |pages=e0267498 |doi=10.1371/journal.pone.0267498}}</ref> The authors of these studies conclude that a commercial strain name is an unreliable guide to either the genetics or the chemistry of the plant in the packet.<ref name="schwabe2019"/><ref name="smith2022"/>

== Chemovar and chemotype ==

[[File:Cannabis-chemotype-types.jpg|thumb|right|320px|alt=Five bars showing the balance of THC and CBD from THC-dominant through mixed to near cannabinoid-free.|Chemotypes sort plants by cannabinoid ratio, from Type I (THC-dominant) to Type V (almost cannabinoid-free), independently of breeding identity.]]

A cultivar is a breeding category; a [[Chemotype|chemovar]], or chemotype, is a chemical one. Two plants of the same cultivar can express different amounts of the same compounds depending on how they are grown, so chemical grouping cuts across breeding identity rather than tracking it.<ref name="hazekamp2016">{{cite journal |last1=Hazekamp |first1=Arno |last2=Tejkalová |first2=Katerina |last3=Papadimitriou |first3=Stelios |title=Cannabis: from cultivar to chemovar II – a metabolomics approach to cannabis classification |journal=Cannabis and Cannabinoid Research |year=2016 |volume=1 |issue=1 |pages=202–215 |doi=10.1089/can.2016.0017}}</ref><ref name="hazekamp2012">{{cite journal |last1=Hazekamp |first1=Arno |last2=Fischedick |first2=Justin T. |title=Cannabis – from cultivar to chemovar |journal=Drug Testing and Analysis |year=2012 |volume=4 |issue=7–8 |pages=660–667 |doi=10.1002/dta.407}}</ref> Because both the effects and the legal status of a ''Cannabis'' plant follow its chemistry, the chemical grouping is often the more useful of the two, and analytical laboratories increasingly report a chemovar profile in place of a strain name.<ref name="hazekamp2016"/>

The established chemical scheme sorts plants by the ratio of the two major cannabinoids. Type I is dominated by [[Tetrahydrocannabinol|tetrahydrocannabinol]] (THC), Type III by [[Cannabidiol|cannabidiol]] (CBD), and Type II carries both in comparable amounts; further classes cover plants dominated by cannabigerol (Type IV) or almost free of cannabinoids (Type V).<ref name="small2015"/> The THC-to-CBD balance is largely set by a single genetic locus at which codominant alleles direct the [[Cannabinoid biosynthesis|biosynthetic enzymes]] toward one cannabinoid or the other, so a plant's chemotype is substantially [[heredity|inherited]] and can be fixed by breeding; it is this predictability that lets regulators draw the boundary between hemp and drug ''Cannabis'' at a fixed THC percentage.<ref name="demeijer2003">{{cite journal |last1=de Meijer |first1=E.P.M. |last2=Bagatta |first2=M. |last3=Carboni |first3=A. |last4=Crucitti |first4=P. |last5=Moliterni |first5=V.M.C. |last6=Ranalli |first6=P. |last7=Mandolino |first7=G. |title=The inheritance of chemical phenotype in ''Cannabis sativa'' L. |journal=Genetics |year=2003 |volume=163 |issue=1 |pages=335–346 |doi=10.1093/genetics/163.1.335}}</ref><ref name="small2015"/>

Terpene composition adds a second chemical axis. Profiling of commercial material resolves a small number of recurring terpene groupings, led by compounds such as myrcene, limonene, caryophyllene and terpinolene, and these groupings cut across the cannabinoid types and across the names the material is sold under.<ref name="smith2022"/> The proposal that terpenes shape the effect of the cannabinoids alongside which they occur, sometimes called an [[wikipedia:Entourage effect|entourage effect]], is one reason chemovar description has moved toward reporting the full cannabinoid and terpene profile rather than THC content alone.<ref name="russo2011">{{cite journal |last=Russo |first=Ethan B. |title=Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects |journal=British Journal of Pharmacology |year=2011 |volume=163 |issue=7 |pages=1344–1364 |doi=10.1111/j.1476-5381.2011.01238.x}}</ref><ref name="hazekamp2016"/> Because growing conditions move these profiles, a chemovar describes a plant as measured rather than a fixed property of its lineage; that dependence of expressed chemistry on environment is an instance of [[phenotypic plasticity]], and it is one reason a single cultivar cannot be assumed to deliver one chemotype across sites and seasons.<ref name="hazekamp2016"/>

== Sativa and indica as cultivar categories ==
The commonest folk classification of drug ''Cannabis'' splits it into "sativa", "indica" and "hybrid" types, a vocabulary that predates and largely ignores the formal categories above. In trade usage the labels are meant to signal both a plant's build, tall and narrow-leafletted against short and broad-leafletted, and the character of its effect, with "sativa" sold as stimulating and "indica" as sedating.<ref name="mcpartlandsmall2020"/>

The link between the two has not held up. The physician and cannabis researcher Ethan Russo has argued that a plant's height, branching and leaf shape give no reliable guide to its chemistry, and that only assay of the actual cannabinoids and terpenes can establish what a plant will do.<ref name="piomellirusso2016">{{cite journal |last1=Piomelli |first1=Daniele |last2=Russo |first2=Ethan B. |title=The ''Cannabis sativa'' versus ''Cannabis indica'' debate: an interview with Ethan Russo, MD |journal=Cannabis and Cannabinoid Research |year=2016 |volume=1 |issue=1 |pages=44–46 |doi=10.1089/can.2015.29003.ebr}}</ref> Genomic work points the same way: generations of interbreeding have mixed the ancestries the labels once tracked, leaving "sativa" and "indica" as poor predictors of either genome-wide ancestry or chemical output.<ref name="lynch2016">{{cite journal |last1=Lynch |first1=Ryan C. |last2=Vergara |first2=Daniela |last3=Tittes |first3=Silas |last4=White |first4=Kristin |last5=Schwartz |first5=C.J. |last6=Gibbs |first6=Matthew J. |last7=Ruthenburg |first7=Travis C. |last8=deCesare |first8=Kymron |last9=Land |first9=Donald P. |last10=Kane |first10=Nolan C. |title=Genomic and chemical diversity in ''Cannabis'' |journal=Critical Reviews in Plant Sciences |year=2016 |volume=35 |issue=5–6 |pages=349–363 |doi=10.1080/07352689.2016.1265363}}</ref><ref name="sawler2015"/> The morphological contrast the terms capture is real, and is treated more precisely as the [[NLD/BLD classification|narrow-leaflet and broad-leaflet drug biotypes]] in [[Cannabis taxonomy]] and ''[[Cannabis indica]]''; as cultivar categories, though, the folk labels carry little of the distinctness they seem to promise, which is why formal treatments set them aside in favour of chemotype and documented lineage.

== From landrace to cultivar: breeding and stabilisation ==

[[File:Cannabis-landrace-to-cultivar-breeding.jpg|thumb|right|340px|alt=A flow diagram from a mixed landrace population through selection and inbreeding to a uniform hybrid and a fixed clone.|Routes from a variable landrace to a uniform cultivar: selection and inbreeding to fixed lines, a repeated cross for a uniform first generation, or clonal fixation of a single plant.]]

Cultivars are drawn out of landraces by degrees. The oldest method is [[mass selection]], in which a grower saves seed from the plants that best show a wanted trait and discards the rest; repeated over seasons it shifts a population without ever making it uniform, and it is the process by which farmers turned wild ''Cannabis'' into the regional landraces that later breeding drew on.<ref name="clarke2013"/><ref name="demeijer1992">{{cite journal |last1=de Meijer |first1=E.P.M. |last2=van der Kamp |first2=H.J. |last3=van Eeuwijk |first3=F.A. |title=Characterisation of ''Cannabis'' accessions with regard to cannabinoid content in relation to other plant characters |journal=Euphytica |year=1992 |volume=62 |issue=3 |pages=187–200 |doi=10.1007/BF00041753}}</ref> Formal cultivar breeding tightens selection further and pairs it with control over pollination.

Uniformity is reached by cutting genetic variability down and then holding it fixed. Repeated self-pollination or crossing between close relatives yields [[breeding line|inbred lines]] that breed true; [[backcrossing]] moves a single wanted trait from one line into an established one by crossing back to the recurrent parent over several generations while keeping the rest of that parent's makeup.<ref name="clarke2013"/> Crossing two distinct inbred lines gives a first-generation [[Hybrid (biology)|hybrid]] population that is uniform and often more vigorous than either parent, an expression of [[hybrid vigour]]; that uniformity lasts only for the one generation, so such a cultivar is reproduced by remaking the cross rather than by saving its seed.<ref name="clarke2013"/><ref name="small2015"/>

Two features of ''Cannabis'' shape how its cultivars are held. Because the plant is normally [[Dioecy|dioecious]], a seed crop involves two parents and some variability, whereas fibre and grain hemp breeders select [[Sex expression|monoecious]] lines so that a crop carries one sex expression and ripens evenly.<ref name="small2015"/><ref name="demeijer1992"/> Breeders also work the plant's expression of sex to keep drug-type lines uniform, treating female plants so that they shed pollen and their seed yields only female offspring, and they select day-neutral [[Autoflowering|autoflowering]] plants, a recessive character carried into cultivated stock from [[Cannabis ruderalis|ruderal]] populations, to make flowering independent of daylength.<ref name="clarke2013"/>

How a cultivar is propagated then decides how faithfully it persists. A clone, taken as a cutting from a single mother plant, carries that plant's [[genotype]] unchanged and so reproduces a drug-type cultivar exactly, which is why most named drug-type ''Cannabis'' is kept [[Vegetative propagation|clonally]]; the cost is that clonal stock accumulates viruses and other [[Pathogens and disease|pathogens]] over successive passages and must be maintained as living plants rather than stored as seed.<ref name="clarke2013"/> A seed-propagated cultivar stores and ships easily and sheds its pathogens with each generation, but it only holds its type if it is a fixed inbred line or a remade first-generation cross; the open-pollinated seed of a hybrid segregates and loses uniformity within a single generation.<ref name="clarke2013"/><ref name="small2015"/>

== Cannabis cultivar types ==

[[File:Cannabis-fibre-hemp-cultivar-field.jpg|thumb|right|320px|alt=A green tractor working in a hemp field under a clear summer sky.|A fibre-hemp cultivar grown as a field crop; registered hemp cultivars are uniform enough to be sown and harvested like any other agricultural variety.]]

Registered and named ''Cannabis'' cultivars fall into a few broad purposes that track the plant's historical uses. Fibre hemp cultivars are selected for tall, little-branched stems with a high proportion of [[wikipedia:Bast fibre|bast fibre]] and low cannabinoid content; grain cultivars for heavy, early-ripening seed; and dual-purpose cultivars for a workable compromise between the two.<ref name="small2015"/><ref name="demeijer1992"/> A more recent class of hemp cultivar is selected for high CBD with THC held below the legal hemp threshold, a Type III chemotype grown for extraction rather than fibre or grain.<ref name="small2015"/> Long-standing European fibre and grain cultivars such as 'Carmagnola', 'Futura 75', 'Finola' and 'USO 31' are kept in national and regional variety catalogues, which is what gives them the documented, reproducible identity that most drug-type material lacks.

Drug-type cultivars are the products of the modern breeding set out above, selected for cannabinoid and terpene profile, [[yield]] and flowering time, then propagated mostly as clones. They are far more numerous than registered hemp cultivars but far less often documented, so the great majority exist as commercial names rather than as verified cultivars.<ref name="schwabe2019"/> To bring some order to the range, Small's revision gathers cultivated ''Cannabis'' into a small set of cultivar Groups defined by use and chemistry, separating fibre and grain hemp from the narrow-leaflet and broad-leaflet drug plants; the scheme draws on genetic evidence for distinct hemp, drug and ruderal [[gene pool]]s and is one attempt to give the informal market categories a footing in the cultivated-plant code.<ref name="small2015"/><ref name="hillig2005">{{cite journal |last=Hillig |first=Karl W. |title=Genetic evidence for speciation in ''Cannabis'' (Cannabaceae) |journal=Genetic Resources and Crop Evolution |year=2005 |volume=52 |issue=2 |pages=161–180 |doi=10.1007/s10722-003-4452-y}}</ref>

== Distinctness, uniformity and stability ==
The formal test a plant group must pass to be registered as a cultivar is distinctness, uniformity and stability, usually shortened to DUS: it must be clearly distinguishable from existing cultivars, consistent in its selected characters within each generation, and unchanged across the generations of propagation used to maintain it.<ref name="icncp"/> A national authority examines a candidate against these criteria, often by growing it out beside reference cultivars, and where it passes, the breeder can be granted [[wikipedia:Plant breeders' rights|plant breeders' rights]], a protection co-ordinated internationally through the [[wikipedia:International Union for the Protection of New Varieties of Plants|International Union for the Protection of New Varieties of Plants]] that gives exclusive control over propagating and selling the variety for a set term. The DUS description filed at registration then doubles as the reference against which later plants claiming the cultivar's name can be checked.

''Cannabis'' has largely sat outside this machinery, and unevenly. Fibre and grain hemp, treated as an ordinary agricultural crop, is registered and protected in the usual way and appears in national and regional variety lists. Drug-type ''Cannabis'' has until recently been shut out of most variety-protection systems by prohibition, and its clonal, undocumented breeding leaves few lines with the examination record registration requires.<ref name="schwabe2019"/> The result is the identity problem already described: with neither registration nor a certifying authority, a named drug-type variety cannot be independently confirmed. Proposals to close the gap turn on [[wikipedia:DNA profiling|genetic fingerprinting]] and chemical profiling, which would let a reference genotype and chemovar stand in for the DUS description that most drug-type cultivars have never been given.<ref name="schwabe2019"/><ref name="sawler2015"/>

== Conservation implications ==
The cultivar and the landrace mark two ends of a conservation problem. A cultivar is uniform, documented and, once registered, subject to [[intellectual property]] rights, which makes it easy to reproduce but narrow in the diversity it holds. A [[Landrace Cannabis|landrace]] carries the standing [[genetic diversity]] that adaptation draws on, but it exists only while farmers keep growing it and is lost when cultivation stops or when uniform cultivars crowd it out.<ref name="clarke2013"/><ref name="mcpartlandsmall2020"/>

For ''Cannabis'' the risk falls hardest on the drug-type landraces of [[South Asia|southern]] and [[Central Asia|central]] Asia, whose distinctness is eroding as commercial cultivars spread and as prohibition disrupts traditional cultivation. A classification of these endangered populations argues for treating them under the botanical code as varieties worth conserving in their own right, apart from the cultivars bred out of them, and for capturing their diversity in [[ex situ conservation|ex situ]] collections before it goes.<ref name="mcpartlandsmall2020"/> The distinction between a landrace and a cultivar decides what a conservation programme is trying to keep: a living and variable population, or a fixed and repeatable line.<ref name="clarke2013"/>

== See also ==
* [[Landrace Cannabis]]
* [[Cannabis taxonomy]]
* [[Chemotype]]
* [[Cannabis strain]]
* [[Hybrid (biology)|Hybrid]]
* [[Mass selection]]

== References ==
<references />

[[Category:Cannabis Taxonomy]]

Phylogenetics of Cannabis

Eloise Zomia — Sun, 05 Jul 2026 01:23:58 GMT

Eloise Zomia:

{{Botany series
|image=Cannabis-phylogeny-cladogram.jpg
|alt=A cladogram showing Cannabis and Humulus as sister genera in a clade nested among the woody genera of the family Cannabaceae.
|caption=Within [[Cannabaceae]], ''[[Cannabis sativa|Cannabis]]'' is the sister genus of ''Humulus'' (hops); the two herbaceous genera sit in a clade nested among the family's woody members.
}}

'''Phylogenetics of Cannabis''' is the reconstruction of the evolutionary relationships of the genus ''[[Cannabis sativa|Cannabis]]'' from molecular data. It addresses three questions: the placement of ''Cannabis'' among the genera of the family [[Cannabaceae]], the genetic structure within the genus, and the genomic signatures left by domestication.<ref name="mcpartland2018">{{cite journal |last=McPartland |first=J.M. |year=2018 |title=Cannabis systematics at the levels of family, genus, and species |journal=Cannabis and Cannabinoid Research |volume=3 |issue=1 |pages=203–212 |doi=10.1089/can.2018.0039 |doi-access=free}}</ref> Successive methods resolve these relationships at different depths, and the picture has sharpened as whole-genome sequencing has replaced the biochemical and marker-based approaches used earlier.

Molecular evidence informs the long-running dispute over how many species the genus contains, but has not settled it; recent genomic reviews lean toward a single species while treating the question as open, and the rank debate itself is covered in [[Cannabis taxonomy]].<ref name="lapierre2023">{{cite journal |last=Lapierre |first=É. |last2=Monthony |first2=A.S. |last3=Torkamaneh |first3=D. |year=2023 |title=Genomics-based taxonomy to clarify cannabis classification |journal=Genome |volume=66 |issue=8 |pages=202–211 |doi=10.1139/gen-2023-0005}}</ref> How much phylogenetic structure can be recovered is limited by two features of the plant: the genus is fully interfertile, so [[gene flow]] between lineages is easy, and four decades of intentional hybridisation between drug-type populations have overwritten much of the older structure in cultivated material.<ref name="mcpartlandguy2017">{{cite journal |last=McPartland |first=J.M. |last2=Guy |first2=G.W. |year=2017 |title=Models of cannabis taxonomy, cultural bias, and conflicts between scientific and vernacular names |journal=Botanical Review |volume=83 |issue=4 |pages=327–381 |doi=10.1007/s12229-017-9187-0}}</ref>

== Phylogenetic position within Cannabaceae ==

{{main|Cannabaceae}}

''Cannabis'' is one of about ten genera in Cannabaceae, a family of the order Rosales. Its sister genus is ''Humulus'', the hops, and the two herbaceous genera form a strongly supported clade nested among the family's otherwise woody members.<ref name="yang2013">{{cite journal |last=Yang |first=M.Q. |last2=van Velzen |first2=R. |last3=Bakker |first3=F.T. |last4=Sattarian |first4=A. |last5=Li |first5=D.Z. |last6=Yi |first6=T.S. |year=2013 |title=Molecular phylogenetics and character evolution of Cannabaceae |journal=Taxon |volume=62 |issue=3 |pages=473–485 |doi=10.12705/623.9}}</ref><ref name="mcpartland2018" /> Molecular-clock analysis places the divergence of ''Cannabis'' and ''Humulus'' at roughly 28 million years ago.<ref name="mcpartland2018" /> The relationships among the ten genera, and the plastid and nuclear evidence that resolved them, are set out in the article on [[Cannabaceae]]; the phylogenetics of ''Cannabis'' proper begins below the genus boundary.

== Molecular markers and methods ==

The earliest population-level work used biochemical and chemical markers. Hillig scored [[wikipedia:Allozyme|allozyme]] variation at 17 loci across a worldwide accession set in 2005, having the year before analysed the ratio of the two principal [[secondary metabolites|cannabinoids]] as a [[Chemotype|chemotype]] marker with Mahlberg; both studies pointed to a small number of broad [[gene pool|gene pools]] rather than a continuum.<ref name="hillig2005">{{cite journal |last=Hillig |first=K.W. |year=2005 |title=Genetic evidence for speciation in Cannabis (Cannabaceae) |journal=Genetic Resources and Crop Evolution |volume=52 |issue=2 |pages=161–180 |doi=10.1007/s10722-003-4452-y}}</ref><ref name="hilligmahlberg2004">{{cite journal |last=Hillig |first=K.W. |last2=Mahlberg |first2=P.G. |year=2004 |title=A chemotaxonomic analysis of cannabinoid variation in Cannabis (Cannabaceae) |journal=American Journal of Botany |volume=91 |issue=6 |pages=966–975 |doi=10.3732/ajb.91.6.966}}</ref>

Genomic methods followed the first reference sequences. van Bakel and colleagues published a draft genome and transcriptome of ''Cannabis sativa'' in 2011, and Laverty and colleagues added a chromosome-scale physical and genetic map in 2019 that placed the [[tetrahydrocannabinolic acid synthase|THCA]] and [[cannabidiolic acid synthase|CBDA]] synthase genes in a heavily rearranged, repeat-rich region, which complicates their assembly and comparison.<ref name="vanbakel2011">{{cite journal |last=van Bakel |first=H. |last2=Stout |first2=J.M. |last3=Cote |first3=A.G. |last4=Tallon |first4=C.M. |last5=Sharpe |first5=A.G. |display-authors=etal |year=2011 |title=The draft genome and transcriptome of Cannabis sativa |journal=Genome Biology |volume=12 |issue=10 |article-number=R102 |doi=10.1186/gb-2011-12-10-r102 |doi-access=free}}</ref><ref name="laverty2019">{{cite journal |last=Laverty |first=K.U. |last2=Stout |first2=J.M. |last3=Sullivan |first3=M.J. |last4=Shah |first4=H. |last5=Gill |first5=N. |display-authors=etal |year=2019 |title=A physical and genetic map of Cannabis sativa identifies extensive rearrangements at the THC/CBD acid synthase loci |journal=Genome Research |volume=29 |issue=1 |pages=146–156 |doi=10.1101/gr.242594.118 |doi-access=free}}</ref> Reduced-representation genotyping then made population samples affordable: Sawler and colleagues scored 14,031 [[wikipedia:Single-nucleotide polymorphism|single-nucleotide polymorphisms]] across 81 drug-type and 43 hemp accessions in 2015.<ref name="sawler2015">{{cite journal |last=Sawler |first=J. |last2=Stout |first2=J.M. |last3=Gardner |first3=K.M. |last4=Hudson |first4=D. |last5=Vidmar |first5=J. |display-authors=etal |year=2015 |title=The genetic structure of marijuana and hemp |journal=PLOS ONE |volume=10 |issue=8 |article-number=e0133292 |doi=10.1371/journal.pone.0133292 |doi-access=free}}</ref>

Whole-genome resequencing widened the sample again. Ren and colleagues resequenced 110 accessions of worldwide origin in 2021, and Lynch and colleagues assembled a ''Cannabis'' [[wikipedia:Pan-genome|pan-genome]] from wild, feral and cultivated plants in 2025.<ref name="ren2021">{{cite journal |last=Ren |first=G. |last2=Zhang |first2=X. |last3=Li |first3=Y. |last4=Ridout |first4=K. |last5=Serrano-Serrano |first5=M.L. |display-authors=etal |year=2021 |title=Large-scale whole-genome resequencing unravels the domestication history of Cannabis sativa |journal=Science Advances |volume=7 |issue=29 |article-number=eabg2286 |doi=10.1126/sciadv.abg2286 |doi-access=free}}</ref><ref name="lynch2025">{{cite journal |last=Lynch |first=R.C. |last2=Padgitt-Cobb |first2=L.K. |last3=Garfinkel |first3=A.R. |last4=Knaus |first4=B.J. |last5=Hartwick |first5=N.T. |display-authors=etal |year=2025 |title=Domesticated cannabinoid synthases amid a wild mosaic cannabis pangenome |journal=Nature |doi=10.1038/s41586-025-09065-0}}</ref> Target-capture sequencing has extended the reach to herbarium material: Balant and colleagues combined sequence capture from historical collections with fresh whole genomes in 2025 to reconstruct the [[wikipedia:Phylogeography|phylogeography]] of wild-growing and cultivated cannabis across Eurasia.<ref name="balant2025">{{cite journal |last=Balant |first=M. |last2=Vitales |first2=D. |last3=Wang |first3=Z. |last4=Barina |first4=Z. |last5=Fu |first5=L. |display-authors=etal |year=2025 |title=Integrating target capture with whole genome sequencing of recent and natural history collections to explain the phylogeography of wild-growing and cultivated cannabis |journal=Plants, People, Planet |volume=7 |issue=6 |pages=1771–1788 |doi=10.1002/ppp3.70043 |doi-access=free}}</ref> Chemical and allozyme markers resolve the broad gene pools, marker panels resolve population differentiation, and whole-genome data resolve the finer structure of domestication and the rearranged cannabinoid-synthase region.

== Gene pools and intraspecific structure ==

[[File:Cannabis-genetic-structure.jpg|thumb|right|300px|alt=A genetic-structure diagram dividing cannabis accessions into a hemp or fibre gene pool and a drug gene pool, with the drug pool further split into a narrow-leaflet South Asian group and a broad-leaflet Central Asian group, and a small wild or ruderal group at the margin.|Molecular markers recover two principal [[gene pool|gene pools]], a hemp type and a drug type, with the drug type split further into narrow-leaflet South Asian and broad-leaflet Central Asian groups. The structure is clearest in landraces and wild material and is largely erased in modern hybrids.]]

The recurring result across methods is a division into two principal [[gene pool|gene pools]], a hemp or fibre type and a drug type, with a wild or ruderal element at the margin.<ref name="hilligmahlberg2004" /><ref name="hillig2005" /> Hillig and Mahlberg's chemotype survey separated accessions into two pools corresponding to the traditional ''sativa'' and ''indica'' groupings, and Hillig's allozyme analysis recovered the same broad division while proposing a finer set of putative taxa within it.<ref name="hilligmahlberg2004" /><ref name="hillig2005" /> Sawler and colleagues found significant genome-wide differentiation between hemp and drug accessions, consistent with the two-pool picture.<ref name="sawler2015" />

Within the drug type, genome data recover a further split between a narrow-leaflet group of South Asian origin and a broad-leaflet group of Central Asian origin.<ref name="ren2021" /><ref name="mcpartlandsmall2020">{{cite journal |last=McPartland |first=J.M. |last2=Small |first2=E. |year=2020 |title=A classification of endangered high-THC cannabis (Cannabis sativa subsp. indica) domesticates and their wild relatives |journal=PhytoKeys |volume=144 |pages=81–112 |doi=10.3897/phytokeys.144.46700 |doi-access=free}}</ref> These correspond to the narrow-leaflet and broad-leaflet drug biotypes of the [[NLD/BLD classification]] and to the varieties ''indica'' and ''afghanica'' of the conservation treatment of McPartland and Small.<ref name="mcpartlandsmall2020" /> Their mapping onto the vernacular labels "Sativa" and "Indica" is looser and is treated in [[Sativa vs Indica]]. The gene-pool structure is clearest in landrace and wild-derived material and is largely obscured in modern hybrid cultivars.<ref name="sawler2015" /><ref name="mcpartlandguy2017" />

== Domestication and evolutionary history ==

[[File:Cannabis-domestication-origin.jpg|thumb|left|300px|alt=A schematic showing a single domestication of cannabis in East Asia about twelve thousand years ago from a basal wild group, then a later split into hemp-type and drug-type lineages about four thousand years ago, with the drug type spreading into South and Central Asia.|On genomic evidence, ''Cannabis'' was domesticated once in East Asia around 12,000 years ago from a basal population now surviving as feral plants and landraces in China; the hemp and drug lineages diverged later, about 4,000 years ago.]]

Whole-genome data have given the domestication of ''Cannabis'' its firmest treatment. Ren and colleagues resequenced 110 accessions and resolved four groups: a basal group, a hemp type, a drug type and a feral group.<ref name="ren2021" /> The basal group, closest to the ancestral gene pool, now survives as feral plants and landraces in China, and from its position the authors inferred a single domestication in East Asia in the early Neolithic, about 12,000 years ago.<ref name="ren2021" /> This revised a long-standing assumption of a Central Asian origin: on the genomic evidence the wild-growing populations of Central and South Asia are feral escapes rather than the source stock, and the pure wild progenitor is probably extinct, surviving only as feral and landrace relicts.<ref name="ren2021" />

The hemp and drug lineages diverged later, roughly 4,000 years ago, under selection at genes governing branching architecture, cellulose and lignin synthesis in the fibre type and the cannabinoid synthases in the drug type.<ref name="ren2021" /> The pan-genome of Lynch and colleagues set this in a longer perspective: domestication simplified cannabinoid-synthase variation within a much older and more diverse genomic background, so cannabinoid chemistry is a recent overlay on the genome rather than a deep phylogenetic signal.<ref name="lynch2025" /> The geographic reading of these origins, and the older Vavilovian framework it revises, are treated in [[Centre of origin]].

== Hybridisation and modern accessions ==

Intentional hybridisation between drug-type populations of different geographic origin, carried out by breeders in North America and Europe from the late 1970s onward, has made the relationships among modern cultivars reticulate rather than tree-like.<ref name="mcpartlandguy2017" /><ref name="sawler2015" /> Commercial "strain" names correspond poorly to genomic clusters, and neither morphology nor marker data assign hybrid accessions reliably to the underlying gene pools.<ref name="mcpartlandguy2017" /><ref name="lapierre2023" /> Reliable phylogenetic structure is therefore recovered mainly from pre-hybridisation landraces and from wild and feral material, which retain the older signal that recent crossing has erased in the commercial pool.<ref name="lynch2025" /><ref name="ren2021" />

== Implications for taxonomy and conservation ==

Phylogenetic evidence bears on the number of species in ''Cannabis'' without deciding it. Genome-wide data are consistent with a division into two groups but do not distinguish a single species with two subspecies from two separate species; recent genomic reviews lean toward a single-species treatment while noting that the question remains open.<ref name="lapierre2023" /><ref name="small2015">{{cite journal |last=Small |first=E. |year=2015 |title=Evolution and classification of Cannabis sativa (marijuana, hemp) in relation to human utilization |journal=Botanical Review |volume=81 |issue=3 |pages=189–294 |doi=10.1007/s12229-015-9157-3}}</ref> The rank debate itself is set out in [[Cannabis taxonomy]].

For conservation the same data have a clearer use. Because domestication and later hybridisation have overwritten much of the genus's structure, genomic markers are used to identify surviving landrace and wild gene pools and to monitor their integrity.<ref name="mcpartlandsmall2020" /> McPartland and Small named four endangered drug-type varieties and their wild relatives to bring them under a formal treatment, and landrace genome studies, such as the association analysis of Iranian accessions by Babaei and Torkamaneh, characterise the diversity that survives in situ.<ref name="mcpartlandsmall2020" /><ref name="babaei2026">{{cite journal |last=Babaei |first=M. |last2=Torkamaneh |first2=D. |year=2026 |title=Genetic architecture of phenological, morphological, and phytochemical traits in Cannabis landraces |journal=The Plant Genome |volume=19 |issue=2 |article-number=e70243 |doi=10.1002/tpg2.70243 |doi-access=free}}</ref> The link between phylogenetic structure and the conservation of [[Landrace Cannabis|landrace]] populations is developed in that article.

== See also ==

* [[Cannabis taxonomy]]
* [[Cannabaceae]]
* ''[[Cannabis sativa]]''
* ''[[Cannabis indica]]''
* ''[[Cannabis ruderalis]]''
* [[Sativa vs Indica]]
* [[NLD/BLD classification]]
* [[Gene pool]]
* [[Centre of origin]]
* [[Landrace Cannabis]]
* [[Cannabis botany]]
* [[Glossary of Cannabis botany]]
* [[Portal:Botany]]

== References ==

<references />

[[Category:Cannabis Taxonomy]]

Phenotypic plasticity

Eloise Zomia — Sat, 04 Jul 2026 21:47:48 GMT

Eloise Zomia: Externalise method links (common-garden, GWAS) to Wikipedia interwiki per concept-vs-technique rule

{{Botany series
|image=High-altitude-landrace.jpg
|alt=A compact, densely branched high-altitude landrace cannabis plant
|caption=A high-altitude [[Landrace Cannabis|landrace]] population. Compact, densely flowering forms are characteristic of cannabis grown in high-altitude, high-light environments.
}}

'''Phenotypic plasticity''' is the capacity of a single cannabis [[genotype]] to produce different [[phenotype|phenotypes]] in different environments. It is a large part of why ''[[Cannabis sativa|Cannabis]]'' is so variable: much of the difference in height, form, flowering and chemistry between plants reflects the growing environment as well as inherited differences.<ref name="demeijer1992">{{cite journal |last=de Meijer |first=E.P.M. |last2=van der Kamp |first2=H.J. |last3=van Eeuwijk |first3=F.A. |year=1992 |title=Characterisation of Cannabis accessions with regard to cannabinoid content in relation to other plant characters |journal=Euphytica |volume=62 |issue=3 |pages=187–200 |doi=10.1007/BF00041753}}</ref><ref name="petit2020">{{cite journal |last=Petit |first=J. |last2=Salentijn |first2=E.M.J. |last3=Paulo |first3=M.-J. |last4=Thouminot |first4=C. |last5=van Dinter |first5=B.J. |display-authors=etal |year=2020 |title=Genetic variability of morphological, flowering, and biomass quality traits in hemp (Cannabis sativa L.) |journal=Frontiers in Plant Science |volume=11 |article-number=102 |doi=10.3389/fpls.2020.00102 |doi-access=free}}</ref> Because the same genotype can look and yield differently from one site or season to the next, a plant's field appearance is an unreliable guide to its genetic makeup, which matters for how landraces are described, compared and conserved.<ref name="casanas">{{cite journal |last=Casañas |first=F. |last2=Simó |first2=J. |last3=Casals |first3=J. |last4=Prohens |first4=J. |year=2017 |title=Toward an evolved concept of landrace |journal=Frontiers in Plant Science |volume=8 |article-number=145 |doi=10.3389/fpls.2017.00145 |doi-access=free}}</ref><ref name="naimfeil2023">{{cite journal |last=Naim-Feil |first=E. |last2=Elkins |first2=A.C. |last3=Malmberg |first3=M.M. |last4=Ram |first4=D. |last5=Tran |first5=J. |display-authors=etal |year=2023 |title=The cannabis plant as a complex system: interrelationships between cannabinoid compositions, morphological, physiological and phenological traits |journal=Plants |volume=12 |issue=3 |article-number=493 |doi=10.3390/plants12030493 |doi-access=free}}</ref>

Plasticity is measured by growing the same genotypes across several environments and partitioning the variation into genetic, environmental and interaction components. The interaction term, [[Genotype-by-environment interaction|genotype-by-environment interaction]], captures the plastic response: how far genotypes rank or behave differently depending on where they are grown.<ref name="petit2020" /><ref name="beleggia2023">{{cite journal |last=Beleggia |first=R. |last2=Menga |first2=V. |last3=Fulvio |first3=F. |last4=Fares |first4=C. |last5=Trono |first5=D. |year=2023 |title=Effect of genotype, year, and their interaction on the accumulation of bioactive compounds and the antioxidant activity in industrial hemp (Cannabis sativa L.) inflorescences |journal=International Journal of Molecular Sciences |volume=24 |issue=10 |article-number=8969 |doi=10.3390/ijms24108969 |doi-access=free}}</ref>

== Plastic traits in cannabis ==

[[File:Cannabis-height-plasticity-range.jpg|thumb|right|280px|alt=Scale diagram comparing two cannabis plant silhouettes against a height axis in metres: one taller than four metres, the other a dwarf under one metre.|Height in cannabis is highly plastic. Grown in one trial, accessions ranged from over four metres to dwarf forms under one metre, so a plant's size reflects its growing conditions as much as its [[genotype]].]]

Vegetative architecture is highly plastic. Across 200 or more accessions grown together, de Meijer and colleagues recorded plants from over four metres tall to dwarf forms under one metre, alongside wide variation in stem diameter and branching.<ref name="demeijer1992" /> Height, branching and biomass respond strongly to sowing date, density, latitude and season, and [[Cultivar|cultivars]] often change rank for these traits between environments.<ref name="petit2020" />

Phenology is equally responsive. Cannabis is a [[Short-day plant|short-day plant]], and flowering begins when the daylength falls below a genotype's critical [[Photoperiod response|photoperiod]], so the same genotype flowers earlier at a site where short days arrive sooner.<ref name="petit2020b">{{cite journal |last=Petit |first=J. |last2=Salentijn |first2=E.M.J. |last3=Paulo |first3=M.-J. |last4=Denneboom |first4=C. |last5=Trindade |first5=L.M. |year=2020 |title=Genetic architecture of flowering time and sex determination in hemp (Cannabis sativa L.): a genome-wide association study |journal=Frontiers in Plant Science |volume=11 |article-number=569958 |doi=10.3389/fpls.2020.569958 |doi-access=free}}</ref><ref name="dang2022">{{cite journal |last=Dang |first=M. |last2=Muthu Arachchige |first2=N. |last3=Campbell |first3=L.G. |year=2022 |title=Optimizing photoperiod switch to maximize floral biomass and cannabinoid yield in Cannabis sativa L.: a meta-analytic quantile regression approach |journal=Frontiers in Plant Science |volume=12 |article-number=797425 |doi=10.3389/fpls.2021.797425 |doi-access=free}}</ref> [[flowering time|Flowering time]] and, in hemp and [[Monoecy|monoecious]] material, the balance of [[Sex expression|sex expression]] both shift with photoperiod and stress.<ref name="petit2020b" />

The [[secondary metabolites|cannabinoids and terpenes]] are plastic in amount more than in kind. Naim-Feil and colleagues found that the ratios between cannabinoids, which define a plant's [[Chemotype|chemotype]], stay fairly stable across growing facilities, while the absolute quantities vary with the environment.<ref name="naimfeil2023" /> Total cannabinoid content can be lowered by conditions such as high humidity, which also delays flowering.<ref name="corredor2025">{{cite journal |last=Corredor-Perilla |first=I.C. |last2=Kwon |first2=T.-H. |last3=Park |first3=S.-H. |year=2025 |title=Elevated relative humidity significantly decreases cannabinoid concentrations while delaying flowering development in Cannabis sativa L. |journal=Frontiers in Plant Science |volume=16 |article-number=1678142 |doi=10.3389/fpls.2025.1678142 |doi-access=free}}</ref>

== Environmental drivers ==

The environmental factors with the clearest effect on cannabis phenotype are [[Photoperiod response|photoperiod]], light quantity and quality, temperature, water and nutrient supply, and planting density.<ref name="petit2020" /><ref name="dang2022" /> Photoperiod governs the switch to flowering, and the length of the pre-flowering long-day period trades floral biomass against cannabinoid potency.<ref name="dang2022" /> Atmospheric humidity alters both chemistry and timing: elevated [[wikipedia:Relative humidity|relative humidity]] reduces cannabinoid concentrations and delays flowering.<ref name="corredor2025" /> Site and season together can account for as much of the variation in cannabinoid content as genotype does.<ref name="beleggia2023" />

== Plasticity and genotype ==

{{main|Environmental adaptation}}

[[File:Cannabis-variance-partition-hemp.png|thumb|Right|280px|alt=Bar chart dividing total variation in cannabinoid content into three roughly equal parts labelled genotype, year and genotype-by-year interaction.|Partitioning the variation in cannabinoid content in a two-year hemp trial. Genotype, year and their interaction each accounted for a similar share, so environment and [[Genotype-by-environment interaction|genotype-by-environment interaction]] together outweighed genotype alone.]]

Separating the plastic component of a trait from its [[Heritability|heritable]] component needs [[wikipedia:Transplant experiment|common-garden]] and multi-environment trials. In a two-year hemp study, genotype, year and their interaction each explained a similar share of the variation in cannabinoid accumulation, so the environmental and interaction components together exceeded genotype alone.<ref name="beleggia2023" /> Petit and colleagues described some fibre-quality traits as governed by "plastic genetic systems", in which particular genes are expressed only in combination with particular conditions.<ref name="petit2020" />

Traits differ in how plastic they are. Qualitative characters such as cannabinoid ratio and sex are more strongly genetically determined and more repeatable across environments, while quantitative characters such as yield, height and total cannabinoid content are more plastic.<ref name="naimfeil2023" /><ref name="petit2020b" /> [[wikipedia:Genome-wide association study|Genome-wide]] work on landraces has begun to map the loci behind this structure: a study of 145 Iranian landrace accessions resolved genomic regions associated with phenological, morphological and phytochemical traits, several of them [[Pleiotropy|pleiotropic]].<ref name="babaei2026">{{cite journal |last=Babaei |first=M. |last2=Torkamaneh |first2=D. |year=2026 |title=Genetic architecture of phenological, morphological, and phytochemical traits in Cannabis landraces |journal=The Plant Genome |volume=19 |issue=2 |article-number=e70243 |doi=10.1002/tpg2.70243 |doi-access=free}}</ref> Because so much visible variation is environmental, [[Cannabis taxonomy|taxonomic]] and potency claims drawn from field-grown plants without a common-garden control are treated with caution.<ref name="naimfeil2023" /><ref name="small2015">{{cite journal |last=Small |first=E. |year=2015 |title=Evolution and classification of Cannabis sativa (marijuana, hemp) in relation to human utilization |journal=The Botanical Review |volume=81 |issue=3 |pages=189–294 |doi=10.1007/s12229-015-9157-3}}</ref>

== Significance for landraces and conservation ==

Plasticity is built into what a [[Landrace Cannabis|landrace]] is. An evolved landrace is a population shaped by natural and human selection within a defined environment, so part of its characteristic appearance is a plastic response to that setting rather than a fixed inherited trait.<ref name="casanas" /><ref name="clarke2013">{{cite book |last=Clarke |first=R.C. |last2=Merlin |first2=M.D. |year=2013 |title=Cannabis: Evolution and Ethnobotany |publisher=University of California Press |location=Berkeley}}</ref> Moved to a different climate, the same seed stock expresses differently, which is the environmental side of [[Terroir in Cannabis|terroir]].<ref name="clarke2013" />

The point carries into conservation. A landrace grown far from its origin, or held only as a description of field-grown plants, cannot be assumed to show its source traits; telling heritable difference from plastic response needs the accessions grown side by side.<ref name="demeijer1992" /><ref name="babaei2026" /> The same caution applies to [[ex situ conservation|ex situ]] collections, where growing conditions differ from the landrace's home ground.<ref name="casanas" />

== See also ==

* [[Environmental adaptation]]
* [[Terroir in Cannabis]]
* [[Epigenetics in Cannabis]]
* [[Cannabis ecology]]
* [[Landrace Cannabis]]
* [[Cannabis botany]]
* [[Glossary of Cannabis botany]]
* [[Portal:Botany]]

== References ==

<references />

[[Category:Environmental Adaptation]]

Trichome biology

Eloise Zomia — Sat, 04 Jul 2026 21:47:46 GMT

Eloise Zomia: Externalise general-method links (microscopy, SEM, proteomics, transcriptomics, deep learning) to Wikipedia interwiki

{{Botany series
|image=Cannabis-trichomes-macro.jpg
|alt=Macro photograph of cannabis glandular trichomes with translucent globular heads raised on stalks
|caption=Capitate-stalked glandular [[resin|trichomes]] on a cannabis bract, where [[secondary metabolites|cannabinoids and terpenes]] are synthesised and stored.
}}

'''Trichome biology''' is the study of the trichomes of ''[[Cannabis sativa|Cannabis]]'': the [[wikipedia:Epidermis (botany)|epidermal]] hairs and glands that cover much of the plant and that produce and hold almost all of its [[secondary metabolites|cannabinoids and terpenes]].<ref name="tanney2021">{{cite journal |last=Tanney |first=C.A.S. |last2=Backer |first2=R. |last3=Geitmann |first3=A. |last4=Smith |first4=D.L. |year=2021 |title=Cannabis glandular trichomes: a cellular metabolite factory |journal=Frontiers in Plant Science |volume=12 |article-number=721986 |doi=10.3389/fpls.2021.721986 |doi-access=free}}</ref><ref name="dayanandan1976">{{cite journal |last=Dayanandan |first=P. |last2=Kaufman |first2=P.B. |year=1976 |title=Trichomes of Cannabis sativa L. (Cannabaceae) |journal=American Journal of Botany |volume=63 |issue=5 |pages=578–591 |doi=10.1002/j.1537-2197.1976.tb11846.x}}</ref> Two broad classes occur on cannabis. Non-glandular covering trichomes are simple protective hairs, many of them stiffened by a [[wikipedia:Calcium carbonate|calcium carbonate]] [[wikipedia:Cystolith|cystolith]] at the base; glandular trichomes are secretory structures whose cells make a [[resin]] rich in cannabinoids and terpenoids and secrete it into a cavity beneath the [[wikipedia:Plant cuticle|cuticle]].<ref name="dayanandan1976" /><ref name="tanney2021" />

The glandular trichomes borne on the female [[Inflorescence morphology|inflorescence]] are where cannabis concentrates its resin, and their number, size and metabolite content largely set the cannabinoid and terpene profile of the mature flower.<ref name="livingston2020">{{cite journal |last=Livingston |first=S.J. |last2=Quilichini |first2=T.D. |last3=Booth |first3=J.K. |last4=Wong |first4=D.C.J. |last5=Rensing |first5=K.H. |display-authors=etal |year=2020 |title=Cannabis glandular trichomes alter morphology and metabolite content during flower maturation |journal=The Plant Journal |volume=101 |issue=1 |pages=37–56 |doi=10.1111/tpj.14516}}</ref><ref name="tanney2021" /> Because the trichomes are the site of cannabinoid and terpene biosynthesis, their development and cell biology have become an active area of cannabis research, drawing on [[wikipedia:Microscopy|microscopy]], [[wikipedia:Proteomics|proteomics]] and [[wikipedia:Transcriptomics technologies|transcriptomics]].<ref name="conneely2021">{{cite journal |last=Conneely |first=L.J. |last2=Mauleon |first2=R. |last3=Mieog |first3=J. |last4=Barkla |first4=B.J. |last5=Kretzschmar |first5=T. |year=2021 |title=Characterization of the Cannabis sativa glandular trichome proteome |journal=PLOS ONE |volume=16 |issue=4 |article-number=e0242633 |doi=10.1371/journal.pone.0242633 |doi-access=free}}</ref><ref name="xie2023">{{cite journal |last=Xie |first=Z. |last2=Mi |first2=Y. |last3=Kong |first3=L. |last4=Gao |first4=M. |last5=Chen |first5=S. |display-authors=etal |year=2023 |title=Cannabis sativa: origin and history, glandular trichome development, and cannabinoid biosynthesis |journal=Horticulture Research |volume=10 |issue=9 |article-number=uhad150 |doi=10.1093/hr/uhad150 |doi-access=free}}</ref>

== Trichome types ==

{{main|Trichome types}}

[[File:Trichome types.png|thumb|right|280px|alt=Macro photograph of a green cannabis leaf surface covered in translucent glandular trichomes, four of them labelled: a tall capitate-stalked trichome, a shorter capitate-sessile trichome, a small bulbous trichome and a slender pointed non-glandular cystolithic hair.|Glandular and non-glandular trichomes on a fresh ''[[Cannabis sativa|Cannabis]]'' leaf surface. The three glandular forms ([[Capitate-stalked trichomes|capitate-stalked]], capitate-sessile and bulbous) sit alongside a pointed, non-glandular cystolithic hair.]]

[[File:Cannabis-trichome-maturation-stages.jpg|thumb|right|280px|alt=Three magnified cannabis glandular trichome heads in a row: the first a clear translucent resin head, the second cloudy and milky white, the third turned amber brown.|As a glandular trichome matures its resin head shifts from translucent to milky and then amber, a change growers read as a cue to time the harvest.]]

Cannabis bears both non-glandular and glandular trichomes, a distinction established in early [[wikipedia:Scanning electron microscope|scanning electron microscopy]] of the plant.<ref name="dayanandan1976" /> Non-glandular covering trichomes are unicellular, curved hairs found on leaves, stems and bracts; many carry a cystolith of calcium carbonate at the base and act as a physical barrier to small herbivores.<ref name="dayanandan1976" /><ref name="tanney2021" /> These cystolithic hairs roughen vegetative surfaces but produce no resin.<ref name="dayanandan1976" />

Glandular trichomes occur in three forms.<ref name="dayanandan1976" /><ref name="tanney2021" /> Bulbous trichomes are the smallest, a head of one to four cells on a short stalk, scattered across vegetative and floral surfaces.<ref name="tanney2021" /> Capitate-sessile trichomes have a larger globose head on a very short stalk, with a secretory base of about eight disc cells.<ref name="livingston2020" /><ref name="tanney2021" /> Capitate-stalked trichomes are the largest and the most productive: a broad resin head is raised on a multicellular stalk above a layer of 12–16 secretory disc cells, and they crowd the bracts of the mature female inflorescence.<ref name="livingston2020" /><ref name="dayanandan1976" /> The [[Capitate-stalked trichomes|stalked form]] accounts for most of the cannabinoid and terpene content of drug-type flowers.<ref name="livingston2020" /><ref name="tanney2021" />

== Development and maturation ==

{{main|Trichome development}}

The three glandular forms are linked through development rather than being wholly separate lineages. Working with maturing cannabis flowers, Livingston and colleagues found that capitate-stalked trichomes arise from sessile-like precursors, the stalk elongating and the disc-cell number rising as the trichome matures.<ref name="livingston2020" /> Sessile trichomes on vegetative leaves carry about eight disc cells, whereas the stalked trichomes of mature flowers carry 12–16, a difference that tracks this developmental transition rather than marking two unrelated structures.<ref name="livingston2020" />

Trichome number and maturity are not fixed. Punja and colleagues showed that glandular trichome density and the progress of maturation vary with plant age and with genotype, so the same cultivar can present different trichome coverage at different stages of flowering.<ref name="punja2023">{{cite journal |last=Punja |first=Z.K. |last2=Sutton |first2=D.B. |last3=Kim |first3=T. |year=2023 |title=Glandular trichome development, morphology, and maturation are influenced by plant age and genotype in high THC-containing cannabis (Cannabis sativa L.) inflorescences |journal=Journal of Cannabis Research |volume=5 |issue=1 |article-number=12 |doi=10.1186/s42238-023-00178-9 |doi-access=free}}</ref> Trichome initiation is also under hormonal control: [[wikipedia:Methyl jasmonate|methyl jasmonate]] promotes glandular trichome formation, and transcriptomic work has begun to map the regulatory pathway involved.<ref name="huang2024">{{cite journal |last=Huang |first=X. |last2=Chen |first2=W. |last3=Zhao |first3=Y. |last4=Chen |first4=J. |last5=Ouyang |first5=Y. |display-authors=etal |year=2024 |title=Deep learning-based quantification and transcriptomic profiling reveal a methyl jasmonate-mediated glandular trichome formation pathway in Cannabis sativa |journal=The Plant Journal |volume=118 |issue=4 |pages=1155–1173 |doi=10.1111/tpj.16663}}</ref><ref name="xie2023" />

As a trichome matures, the metabolite content of its head changes and the head shifts in appearance from translucent to milky and finally amber.<ref name="livingston2020" /> This colour change tracks the accumulation and later degradation of cannabinoids in the storage cavity, and growers read it as a cue for harvest timing.<ref name="livingston2020" />

== Metabolite biosynthesis and storage ==

[[File:Cannabis-cannabinoid-biosynthesis-pathway.jpg|thumb|right|300px|alt=Schematic pathway diagram. Two labelled precursor boxes, olivetolic acid in the cytosol and geranyl pyrophosphate in the plastid, feed arrows into a single cannabigerolic acid box. Two branching arrows labelled THCA synthase and CBDA synthase lead on to THC and CBD. A side arrow shows terpenes made by terpene synthases, and the resin collects in a storage cavity beneath the cuticle.|[[Cannabinoid biosynthesis]] in the glandular trichome. [[olivetolic acid|Olivetolic acid]] from the cytosol and geranyl pyrophosphate from the plastid combine into [[cannabigerolic acid]], which [[tetrahydrocannabinolic acid synthase|THCA synthase]] or [[cannabidiolic acid synthase|CBDA synthase]] converts to the acidic forms of THC and CBD; which synthase predominates sets the plant's [[Chemotype|chemotype]].]]

The secretory disc cells at the base of a glandular trichome are the main site of specialised-metabolite synthesis in the plant.<ref name="tanney2021" /><ref name="conneely2021" /> A proteomic survey of isolated cannabis trichomes found the disc cells enriched in the enzymes of cannabinoid and terpenoid synthesis, evidence that these compounds are made in the trichome rather than delivered to it.<ref name="conneely2021" />

[[Cannabinoid biosynthesis]] proceeds from two precursors made in different compartments of the disc cell: a [[wikipedia:Polyketide|polyketide]], [[olivetolic acid]], from the [[wikipedia:Cytosol|cytosol]], and [[wikipedia:Geranyl pyrophosphate|geranyl pyrophosphate]] from the [[wikipedia:Plastid|plastid]].<ref name="xie2023" /><ref name="andre2016">{{cite journal |last=Andre |first=C.M. |last2=Hausman |first2=J.-F. |last3=Guerriero |first3=G. |year=2016 |title=Cannabis sativa: the plant of the thousand and one molecules |journal=Frontiers in Plant Science |volume=7 |article-number=19 |doi=10.3389/fpls.2016.00019 |doi-access=free}}</ref> An aromatic [[wikipedia:Prenyltransferase|prenyltransferase]] joins them into [[cannabigerolic acid]], the common precursor, which is then converted by [[tetrahydrocannabinolic acid synthase]] or [[cannabidiolic acid synthase]] into the acidic forms of [[tetrahydrocannabinol|THC]] and [[cannabidiol|CBD]]; which synthase predominates sets the plant's [[Chemotype|chemotype]].<ref name="xie2023" /><ref name="andre2016" /> [[terpene|Terpenes]] are produced alongside the [[cannabinoid]]s by [[terpene synthase]]s in the same cells, and the two classes together make up the bulk of the resin.<ref name="andre2016" /><ref name="russo2011">{{cite journal |last=Russo |first=E.B. |year=2011 |title=Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects |journal=British Journal of Pharmacology |volume=163 |issue=7 |pages=1344–1364 |doi=10.1111/j.1476-5381.2011.01238.x}}</ref>

The resin is secreted into a cavity beneath the cuticle at the top of the trichome, where it accumulates.<ref name="tanney2021" /> The trichome's walls are remodelled as this happens: Livingston and colleagues described how the walls of the disc cells and the surrounding cavity change composition as the trichome develops into a storage structure, a specialisation that lets the cell hold large quantities of [[wikipedia:Lipophilicity|lipophilic]] metabolites outside the living [[wikipedia:Cytoplasm|cytoplasm]].<ref name="livingston2021">{{cite journal |last=Livingston |first=S.J. |last2=Bae |first2=E.J. |last3=Unda |first3=F. |last4=Hahn |first4=M.G. |last5=Mansfield |first5=S.D. |display-authors=etal |year=2021 |title=Cannabis glandular trichome cell walls undergo remodeling to store specialized metabolites |journal=Plant and Cell Physiology |volume=62 |issue=12 |pages=1944–1962 |doi=10.1093/pcp/pcab127}}</ref>

== Functional ecology ==

{{main|Cannabis ecology}}

The ecological functions of cannabis trichomes are only partly understood, and much of the thinking rests on comparison with glandular trichomes in other plants.<ref name="pate1994">{{cite journal |last=Pate |first=D.W. |year=1994 |title=Chemical ecology of Cannabis |journal=Journal of the International Hemp Association |volume=1 |issue=2 |pages=29, 32–37}}</ref><ref name="tanney2021" /> The covering trichomes, with their hard cystoliths, act as a structural defence that deters small [[Herbivory and defence|herbivores]] and impedes movement across the leaf surface.<ref name="dayanandan1976" /><ref name="tanney2021" />

For the glandular trichomes, the leading hypotheses concern chemical defence and protection from radiation. Pate proposed that cannabinoids screen the developing seed and flower from [[wikipedia:Ultraviolet|ultraviolet-B]] radiation and deter herbivores and [[Pathogens and disease|pathogens]], a reading consistent with the concentration of resin on the reproductive parts of the plant and with the higher trichome density often reported in populations from high-altitude, high-light environments.<ref name="pate1994" /> Several trichome terpenes have measurable antimicrobial and insect-deterrent activity, which supports a defensive interpretation of the resin, though a defensive benefit in the field has been hard to demonstrate directly.<ref name="russo2011" /><ref name="tanney2021" />

Trichome coverage also responds to the environment. Light quality, ultraviolet exposure in particular, can shift trichome density and the metabolite profile,<ref name="tanney2021" /> and coverage varies further with plant age and genotype.<ref name="punja2023" />

== Assessment ==

Because the trichomes carry the cannabinoids, their density and maturity serve as practical proxies for the potency and readiness of a crop.<ref name="livingston2020" /><ref name="punja2023" /> Harvest timing is judged from the proportion of trichome heads that have turned milky or amber, and trichome coverage is often taken as a rough guide to cannabinoid yield.<ref name="livingston2020" />

The relationship is looser than it looks. A 2025 review of trichome-density methods found that quantification is inconsistent between studies and that density does not translate cleanly into cannabinoid concentration, because head size, secretory volume and the tissue sampled all intervene.<ref name="alberti2025">{{cite journal |last=Alberti |first=T. |last2=Didaran |first2=F. |last3=Sharma |first3=S. |last4=De Sarandy Raposo |first4=R. |last5=Diatta |first5=A.A. |display-authors=etal |year=2025 |title=Bracts, buds, and biases: uncovering gaps in trichome density quantification and cannabinoid concentration in Cannabis sativa L |journal=Plants |volume=14 |issue=14 |article-number=2220 |doi=10.3390/plants14142220 |doi-access=free}}</ref> Automated image analysis, including [[wikipedia:Deep learning|deep-learning]] methods for counting and classifying trichomes, is being developed to put density measurement on a firmer footing.<ref name="huang2024" /><ref name="alberti2025" />

== See also ==

* [[Cannabis botany]]
* [[Cannabis ecology]]
* [[Chemical ecology]]
* [[Trichome types]]
* [[Trichome development]]
* [[Glossary of Cannabis botany]]
* [[Portal:Botany]]

== References ==

<references />

[[Category:Trichome Biology]]

Cannabis in Nepal: An Overview (1975)

Eloise Zomia — Sat, 04 Jul 2026 15:00:52 GMT

Eloise Zomia: Style/staleness sweep: rewrite dash interruptions; bare See-also/links (no gloss dashes)

{{Infobox Book chapter
|title = Cannabis in Nepal: An Overview
|author = James F. Fisher
|parent_volume = Cannabis and Culture (1975)
|editor = Vera Rubin
|publisher = Mouton
|place = The Hague
|year = 1975
|pages = 247–256
|language = English
|doi = 10.1515/9783110812060.247
|image = vera-rubin-cannabis-culture.jpg
|image_caption = Cover of the parent volume, ''Cannabis and Culture'' (1975)
|growing_regions = Nepal (the Terai lowlands and the middle hills; the main producing districts Bara, Parsa, Siraha, Dhanusa and Mahottari)
|preparations = ''Ganja'' and ''charas'' smoked in a clay pipe (''chilam''); ''bhang''; Ayurvedic compound medicines; seed pressed for cooking oil (Dolpa)
|uses_documented = Religious and ascetic, medicinal (human and veterinary), recreational, culinary (seed oil), fibre, fodder
|regional_cat = Nepal
}}
'''"Cannabis in Nepal: An Overview"''' is a chapter by '''James F. Fisher''', an American anthropologist of Nepal at Carleton College, published in Vera Rubin (ed.), ''[[Cannabis and Culture (1975)|Cannabis and Culture]]'' (Mouton, The Hague, 1975, pp. 247–256).<ref name="fisher1975">{{cite book |last=Fisher |first=James F. |chapter=Cannabis in Nepal: an overview |editor-last=Rubin |editor-first=Vera |title=Cannabis and Culture |title-link=Cannabis and Culture (1975) |location=The Hague |publisher=Mouton |year=1975 |pages=247–256 |doi=10.1515/9783110812060.247}}</ref> Fisher offers it as a brief overview rather than a systematic study, noting that the cultivation and preparation of cannabis in Nepal are much as in the rest of the Indian subcontinent and are already recorded by the [[Indian Hemp Drugs Commission]] and by ''[[Social Aspects of the Use of Cannabis in India (1975)|Hasan's chapter in the same volume]]''.

He surveys where cannabis grows, the traditional uses that a settled society had "learned to accommodate, regulate and restrict" (as a meditation aid for wandering ascetics tied to the worship of Shiva, as a mark of devotional fellowship at ''bhajan'' gatherings, in Ayurvedic medicine for people and animals, and as a pastime of the old), and the abrupt prohibition of 1973, brought on by the disruption of the "hippie" years and by pressure from the United States and the United Nations.<ref name="fisher1975" />

== Author ==

James F. Fisher is an American anthropologist who was professor of anthropology at Carleton College for some thirty-eight years. His fieldwork in Nepal included a study of the economy and ecology of a [[Magar people|Magar]] community in the mountains of the north-west, published as ''Trans-Himalayan Traders: Economy, Society, and Culture in Northwest Nepal'' (1986), on which the chapter's account of the Dolpa district draws.<ref name="fisher-bio">{{cite book |last=Fisher |first=James F. |title=Trans-Himalayan Traders: Economy, Society, and Culture in Northwest Nepal |location=Berkeley |publisher=University of California Press |year=1986 |isbn=0-520-05375-3}}</ref> He acknowledged the assistance of Khem Bahadur Bista, J. Gabriel Campbell and Michael Stern in gathering the data.<ref name="fisher1975" />

== Distribution and origin ==

Fisher stresses [[Nepal]]'s compression of ecological zones, from the tropical [[Terai]] plain on the southern border to the high Himalaya within about a hundred miles. Cannabis, he writes, grows in most of the country and only in the extreme north not at all: wild and cultivated in the middle hills, and cultivated but not wild in the Terai. Although it was commonly held that the higher the altitude the better the plant, he notes that most of the crop came from the more productive Terai, where the bulk of the excise was collected and where the five main producing districts (Bara, Parsa, Siraha, Dhanusa and Mahottari) all lay. Beyond the psychoactive uses, he records that cannabis was in wide use in the hills as cattle fodder and as fibre.<ref name="fisher1975" />

On origins Fisher is tentative. Geographical evidence, he argues, suggests the plant reached Nepal from [[India]] rather than directly from China, its ultimate source, since it was absent along the Tibetan marches but grown in the bordering parts of north India; it may have arrived long ago or with the waves of migration from India from the 12th century onward, which would fit its being more widespread in the west than the east.<ref name="fisher1975" />

== Traditional uses ==

Fisher observes that the proportion of people who used cannabis for psychotropic purposes was small, that users tended to be male and older, and that Nepal did not follow the neat caste pattern G. Morris Carstairs had reported for Rajasthan, where cannabis was linked to Brahmins and alcohol to the Chhetri: in Nepal the highest and the lowest castes alike used cannabis.<ref name="fisher1975" />

=== Ascetics and the worship of Shiva ===

The most conspicuous traditional use, Fisher says, was not strictly Nepalese but Indian: the ''sadhus'' or Hindu mendicant holy men, many of them pilgrims drawn to the Himalayan shrines of Shiva such as Pashupatinath in Kathmandu, who used cannabis as an aid to meditation and to endure the cold and discomfort of ascetic life. Because Shiva was traditionally associated with the plant, smoking it was for Shaivites a way of offering it to the god, but Fisher found from interviews at Pashupatinath that cannabis use was not confined to Shaivite sects and extended across a wide range of Hindu orders. He notes an extreme case in the ''aghori'' ascetics, who under its influence undertook practices such as eating corpse flesh, and cites Agehananda Bharati's account of cannabis as a disinhibiting agent in Tantric ritual. It was held an act of merit to give cannabis to a ''sadhu'', and Fisher records that many households kept a few plants for the purpose.<ref name="fisher1975" />

=== Devotional fellowship ===

A second use was at ''bhajans'', Hindu devotional song meetings associated with ''bhakti'' devotion, where ''[[ganja]]'' was passed round in a ''[[chilam]]'' among the singers as a symbol of fellowship. In Kathmandu, Fisher writes, half a dozen or so public ''bhajans'' were held each night, attended by the same men, farmers or traders by day, who came to share the singing. Participants belonged to various castes, though sharing the pipe excluded the lowest, and women seldom smoked. The use was public knowledge but conferred no special regard, and a layman known as a ''ganjari'', an excessive user, was regarded as mildly disreputable.<ref name="fisher1975" />

=== Medicine ===

The third traditional use was medicinal. Indigenous systems, above all [[Cannabis in Ayurveda|Ayurveda]], used cannabis widely to treat both people and animals, as an ingredient in compounds against diarrhoea, cholera, tetanus, rheumatism and insomnia and as a cough suppressant, digestive, appetite stimulant, soporific, aphrodisiac and antimalarial for hill people descending to the Terai. It was never given alone: a diarrhoea and cholera compound Fisher describes ran to some fifteen ingredients, including dried ginger, black pepper, sea salt, opium, cannabis and the ashes of a clam shell, the cannabis first washed seven times in a cloth. It was even used, mixed with sweets, to quiet children while a mother worked, though Ayurvedic practitioners held that overindulgence, like too much alcohol, could bring on madness, weight loss and a decrease of semen.<ref name="fisher1975" />

Finally, Fisher notes, cannabis was used by old people of many castes simply to pass the time and ease their aches once they were too old to work in the fields, and on festive occasions such as Shivaratri, when pilgrims brought cannabis as ''prasad'' for the ''sadhus'', and Krishna's birthday, when in at least one locality schoolboys' use was sponsored by the school itself.<ref name="fisher1975" />

== Regional variation: the Dolpa Magars ==

Fisher sets against this picture the Tibeto-Burman-speaking Magars of Dolpa district in the north-west, among whom cannabis was used neither ritually nor socially nor medicinally. Though extensively cultivated, it was never taken as an intoxicant; instead the seed was pressed into a dough and worked on a slanted board to yield the district's main cooking oil, without which, he says, cooking would have been impossible. The Magars avoided smoking ''ganja'' and ''[[charas]]'', Fisher explains, because it was the practice of the low-status artisan ''kami'' and so a mark to shun, whereas in other parts of the west, such as Jumla, high and low castes both smoked.<ref name="fisher1975" />

== The hippie era and the 1973 ban ==

This regulated order, Fisher argues, was upset in the mid-1960s when what he calls the "hippie" arrival made cannabis and hashish cheaply and openly available to a resident colony of foreign travellers in Kathmandu. The retail price of ''charas'' rose from about 15 to about 70 US dollars a kilogram, smuggling into India grew until, on one estimate, more was exported than consumed, and the attitudes of young middle-class Nepalis shifted so that open use became a mark of sophistication rather than a furtive youthful habit. His Majesty's Government had regulated cultivation and sale by licence under the Intoxicants Act of 1961 and its rules of 1962, taxing the trade and the licensed shops that served the foreign clientele.<ref name="fisher1975" />

On 16 July 1973 the government revoked all licences to cultivate, buy and sell cannabis, making trafficking illegal while leaving possession and use lawful. Fisher attributes the change to three pressures: middle-class alarm that Nepali youth were being corrupted through foreign influence, United States narcotics policy and the United Nations, whose International Narcotics Control Board had condemned Nepal in its 1972 report. He draws out the ironies, that Nepal was abandoning governmental control of production and distribution just as Western states were moving towards it, and that a trade created by Western demand was being closed in response to a different Western demand. The government lost the licence revenue and the hill farmers of the west lost a small but important cash crop, yet there was little public protest. Fisher closes with the belief of one ''sadhu'' that the burning of the Singha Durbar secretariat soon after the decision was Shiva's revenge for the ban on his special plant.<ref name="fisher1975" />

== Significance ==

Fisher's chapter is an early overview of cannabis in Nepal and one of the sources bearing on [[Cannabis in Nepal]]. Its value lies less in new cultivation data, which it defers to the Indian record, than in its account of the plant's place in Nepali religious and social life on the eve of prohibition: the ascetic and devotional uses, the exception of the oil-pressing Magars of Dolpa, and a first-hand record of the 1973 ban and the foreign pressures behind it. The chapter uses some ethnographic and racial vocabulary of its period (for instance "Mongoloid" for the hill peoples, and "hippie"); in this article such terms are given in current form or attributed to Fisher.<ref name="fisher1975" />

== See also ==

* ''[[Cannabis and Culture (1975)]]''
* [[Cannabis in Nepal]]
* [[Nepal]]
* ''[[Social Aspects of the Use of Cannabis in India (1975)]]''
* [[Indian Hemp Drugs Commission]]

== References ==

{{Reflist}}

== External links ==

* [https://doi.org/10.1515/9783110812060.247 "Cannabis in Nepal: An Overview"]

<div style="display:none;">
[[Has region documented::Nepal]]
[[Has preparation documented::Ganja (smoked in a chilam)]]
[[Has preparation documented::Charas]]
[[Has preparation documented::Bhang]]
[[Has preparation documented::Ayurvedic compound medicine]]
[[Has preparation documented::Seed-pressed cooking oil]]
[[Has use documented::Religious]]
[[Has use documented::Medicinal]]
[[Has use documented::Recreational]]
[[Has use documented::Culinary]]
[[Has use documented::Fibre]]
[[Has use documented::Fodder]]
</div>

Social Aspects of the Use of Cannabis in India (1975)

Eloise Zomia — Sat, 04 Jul 2026 15:00:45 GMT

Eloise Zomia: Style/staleness sweep: rewrite dash interruptions; bare See-also/links (no gloss dashes)

{{Infobox Book chapter
|title = Social Aspects of the Use of Cannabis in India
|author = Khwaja A. Hasan
|parent_volume = Cannabis and Culture (1975)
|editor = Vera Rubin
|publisher = Mouton
|place = The Hague
|year = 1975
|pages = 235–246
|language = English
|doi = 10.1515/9783110812060.235
|image = vera-rubin-cannabis-culture.jpg
|image_caption = Cover of the parent volume, ''Cannabis and Culture'' (1975)
|growing_regions = North India (fieldwork in a village near Lucknow, Uttar Pradesh)
|preparations = ''Ganja'' and ''charas'' smoked with tobacco in a clay pipe (''chilam''); ''bhang'' eaten as balls or drunk as the ''thandai'' beverage
|uses_documented = Recreational, religious, social
|regional_cat = India
}}
'''"Social Aspects of the Use of Cannabis in India"''' is a chapter by '''Khwaja A. Hasan''', an Indian medical anthropologist, published in Vera Rubin (ed.), ''[[Cannabis and Culture (1975)|Cannabis and Culture]]'' (Mouton, The Hague, 1975, pp. 235–246).<ref name="hasan1975">{{cite book |last=Hasan |first=Khwaja A. |chapter=Social aspects of the use of cannabis in India |editor-last=Rubin |editor-first=Vera |title=Cannabis and Culture |title-link=Cannabis and Culture (1975) |location=The Hague |publisher=Mouton |year=1975 |pages=235–246 |doi=10.1515/9783110812060.235}}</ref> Drawing on fieldwork in a village near Lucknow, it describes the place of cannabis in the social and religious life of Hindu village society in north India, and contrasts the social acceptance of hemp drugs with the disapproval of alcohol.

Hasan distinguishes the three Indian preparations of cannabis (''[[ganja]]'' from the flowering tops, ''[[bhang]]'' from the leaves and ''[[charas]]'' from the resin) and argues that their use carried religious sanction through an association with the god Shiva, whereas the use of alcohol was governed by caste prohibition. He documents how the preparations were made and consumed, the part played by the ''bhagat'' or devotee, and concludes from his village survey that regular use and dependence were rare.<ref name="hasan1975" />

== Author ==

Khwaja A. Hasan was an Indian medical anthropologist whose fieldwork centred on villages of north India. His monograph ''The Cultural Frontier of Health in Village India: Case Study of a North Indian Village'' (Manaktalas, 1967) and a related study of Hindu dietary practice examined health, ritual and caste in the same region from which the present chapter draws its data.<ref name="hasan-bio">{{cite book |last=Hasan |first=Khwaja A. |title=The Cultural Frontier of Health in Village India: Case Study of a North Indian Village |location=Bombay |publisher=Manaktalas |year=1967 |via=U.S. National Library of Medicine |url=https://www.ncbi.nlm.nih.gov/nlmcatalog/217672}}</ref>

== Ethnohistorical background ==

Hasan opens with a sketch of intoxicants in Indian history. He recalls the Vedic ''soma'' and its substitutes, and notes that the ''Dharmasutras'' condemned the drinking of ''sura'' (liquor) by a Brahman while saying little of hemp, so that liquor came to be associated with the lower castes. He traces the fluctuating fortunes of intoxicants through the Buddhist prohibition, the revival of Brahmanism and the medieval period, when some rulers drank and others, such as Aurangzeb, abstained.<ref name="hasan1975" />

He then turns to the colonial and modern regulation of cannabis. The British, he writes, introduced excise taxation rather than prohibition, licensing manufacture and sale and restricting consumption by raising duties; the Royal Commission on opium of 1893 and, shortly after, the [[Indian Hemp Drugs Commission]] gathered a mass of evidence on the prevalence and effects of both drugs. After independence, the Gandhian movement pressed for prohibition, and several states declared "wet" and "dry" districts or days, which Hasan says encouraged illicit distillation, poisoning from denatured spirit and the smuggling of ''ganja'' from Nepal.<ref name="hasan1975" />

== Cannabis, alcohol and caste ==

The chapter's central argument is that the use or avoidance of an intoxicant expressed caste values. Alcohol, Hasan writes, was absolutely prohibited to the Brahman, the highest ''varna'', a prohibition he traces to the Vedic period, whereas among the Shudra and the communities he calls "untouchable" (now Dalit) it was used freely. Hemp drugs, by contrast, carried social sanction across the ranks because of their religious associations.<ref name="hasan1975" />

He supports the point with a survey of a village he calls Chinaura, near Lucknow, carried out in 1959–1960. Of 62 Hindu respondents, 45 (75 per cent) had no objection to wine or country liquor, but 54 (87 per cent) had no objection to one or more of the hemp drugs, a difference Hasan attributes to the religious and cultural sanctioning of hemp. The key figure is the ''bhagat'' or devotee: a man initiated under a religious preceptor pledged to give up liquor, meat, onion, garlic and sexual activity, but not hemp, so that devotees and holy men were free to use ''ganja'', ''bhang'' and ''charas'' while abstaining from alcohol. Hasan records that many lower-caste men over the age of about 40 became ''bhagats'', and gives the case of a man of a sweeper caste who left a salaried railway job to become a devotee and gained standing thereby, higher-caste men joining his smoking circle in a way that ordinary caste rules would have forbidden.<ref name="hasan1975" />

The religious sanction rested on the god Shiva, also called Shankar, who was believed fond of hemp drugs; they were offered to him on the festival of Shivaratri as "food of the god". Hasan notes the scholarly debate over whether the Vedic ''soma'' was itself cannabis, citing the identification of ''soma'' as the plant against R. Gordon Wasson's argument that it was instead the fly-agaric mushroom.<ref name="hasan1975" />

== Preparation and consumption ==

Hasan describes the preparations in detail. ''Bhang'', made from the leaves, was eaten as small balls with sweets or drunk as ''[[thandai]]'', a "cold drink" of almonds, pistachios, rose petals, pepper, aniseed and cloves ground on a stone plate, dissolved in milk with the ''bhang'' added and sweetened with sugar or jaggery; in the cities it was sometimes stirred into ''kulfi'' ice cream. He notes the drink's nutritional value in a protein-poor diet and the sociability of its hour-long preparation, in which family, caste or neighbourhood friends gathered, although the Shudra and "untouchable" castes held their own gatherings apart from the twice-born.<ref name="hasan1975" />

''Ganja'' and ''charas'' were mixed with tobacco and smoked in a funnel-shaped clay pipe, the ''[[chilam]]''. Hasan sets out the etiquette of the smoking circle: four or five men sat together, a charred clay filter and a burnt ring of rope fibre were placed in the bowl, and the pipe was passed from hand to hand, held so that the lips never touched the clay and its ritual purity was preserved, which allowed men of different castes to share a single pipe. The first smoker offered the smoke to Shiva with a spoken invocation. Such gatherings, held on a raised platform outside a house, were an occasion to talk over crops, prices and marriages, and Hasan likens them to the "coffee breaks" of American life.<ref name="hasan1975" />

== Effects and dependence ==

On effects, Hasan is cautious. He notes that the physiological action of ''thandai'' and eaten ''bhang'' was unstudied, and that smoking ''ganja'' in its social setting involved only a single deep inhalation. He is sceptical of the criminological literature, in particular the claim by the Chopra brothers that even a single dose of ''ganja'' or ''charas'' could be responsible for a serious crime, asking how many users did not offend and how many offenders had never used the drug. He finds no evidence of physical dependence: use was mostly tied to festivals and ceremonial occasions, there was little desire to increase the dose, and in Chinaura, with a population of about 1,190, he counted no more than four regular users.<ref name="hasan1975" />

== Significance ==

Hasan's chapter is an early sociological account of cannabis in Indian village society and one of the sources bearing on [[Cannabis in India]] and, at the regional level, [[Cannabis in West Bengal]]. Its lasting contributions are the clear statement of the three-form ''ganja''/''bhang''/''charas'' taxonomy, the argument that hemp's social acceptance rested on the Shiva association while alcohol was governed by caste, and the empirical finding, unusual for its time, that regular use and dependence were rare in the village studied. The chapter belongs to the same "ganja complex" that Vera Rubin drew from the [[Indian Hemp Drugs Commission]] in framing the volume.<ref name="hasan1975" />

As with other chapters of the volume, its caste vocabulary ("twice-born", "untouchable", "lower castes") is that of its period; in this article those categories are given in current terms, with Hasan's own wording retained only where his argument turns on it.<ref name="hasan1975" />

== See also ==

* ''[[Cannabis and Culture (1975)]]''
* [[Cannabis in India]]
* [[India]]
* [[Cannabis in West Bengal]]
* [[Indian Hemp Drugs Commission]]
* ''[[Cannabis in Nepal: An Overview (1975)]]''

== References ==

{{Reflist}}

== External links ==

* [https://doi.org/10.1515/9783110812060.235 "Social Aspects of the Use of Cannabis in India"]

<div style="display:none;">
[[Has region documented::India]]
[[Has preparation documented::Ganja (smoked with tobacco in a chilam)]]
[[Has preparation documented::Charas (smoked with tobacco)]]
[[Has preparation documented::Bhang (eaten as balls; thandai drink)]]
[[Has use documented::Recreational]]
[[Has use documented::Religious]]
[[Has use documented::Social]]
</div>

Economic Significance of Cannabis sativa in the Moroccan Rif (1975)

Eloise Zomia — Sat, 04 Jul 2026 15:00:41 GMT

Eloise Zomia: Style/staleness sweep: rewrite dash interruptions; bare See-also/links (no gloss dashes)

{{Infobox Book chapter
|title = Economic Significance of ''Cannabis sativa'' in the Moroccan Rif
|author = Roger Joseph
|author_dates = b. 1938
|parent_volume = Cannabis and Culture (1975)
|editor = Vera Rubin
|publisher = Mouton
|place = The Hague
|year = 1975
|pages = 185–194
|language = English
|doi = 10.1515/9783110812060.185
|image = vera-rubin-cannabis-culture.jpg
|image_caption = Cover of the parent volume, ''Cannabis and Culture'' (1975)
|growing_regions = The [[Rif Mountains|Rif]], northern Morocco (Ketama and Beni Seddath)
|preparations = ''Kif'' (chopped cannabis mixed with uncured tobacco, roughly 0.7 kif to 0.3 tobacco), smoked in a long-stemmed pipe (''sebsi'')
|uses_documented = Recreational, stimulant, stress relief, fibre (retted stems)
|regional_cat = Morocco
}}
'''"Economic Significance of ''Cannabis sativa'' in the Moroccan Rif"''' is a chapter by '''Roger Joseph''' (born 1938), an American anthropologist, published in Vera Rubin (ed.), ''[[Cannabis and Culture (1975)|Cannabis and Culture]]'' (Mouton, The Hague, 1975, pp. 185–194).<ref name="joseph1975">{{cite book |last=Joseph |first=Roger |chapter=Economic significance of Cannabis sativa in the Moroccan Rif |editor-last=Rubin |editor-first=Vera |title=Cannabis and Culture |title-link=Cannabis and Culture (1975) |location=The Hague |publisher=Mouton |year=1975 |pages=185–194 |doi=10.1515/9783110812060.185}}</ref> Based on about eighteen months of fieldwork in northern [[Morocco]], it treats ''[[kif]]'' (chopped cannabis mixed with tobacco and smoked in a pipe) as an economic commodity, and asks why its cultivation persisted and even flourished in the [[Rif Mountains|Rif]] although it was illegal.

Joseph argues that the poverty of northern Morocco, ecological and political in origin, made ''kif'' the rational cash crop of the [[Cannabis in the Rif|Rif]]. He documents the cultivation core around [[Ketama]], the economics of the ''kif''-and-tobacco mixture and its distribution, and attitudes that treated ''kif'' as socially acceptable in contrast to alcohol, and he describes a government position that prohibited the sale of ''kif'' while tolerating its production.<ref name="joseph1975" />

== Author ==

Roger Joseph (born 1938) is an American cultural anthropologist who carried out fieldwork in the Rif. The study reported in the chapter was sponsored by the Wenner-Gren Foundation for Anthropological Research.<ref name="joseph1975" /> With Terri Brint Joseph he later wrote ''The Rose and the Thorn: Semiotic Structures in Morocco'' (University of Arizona Press, 1987), a study of two [[Riffian people|Riffian]] communities.<ref name="joseph-bio">{{cite book |last1=Joseph |first1=Roger |last2=Joseph |first2=Terri Brint |title=The Rose and the Thorn: Semiotic Structures in Morocco |location=Tucson |publisher=University of Arizona Press |year=1987 |isbn=0-8165-0996-4 |via=Internet Archive |url=https://archive.org/details/rosethornsemioti0000jose}}</ref>

== The Rif setting ==

Joseph describes northern Morocco as one of the poorest agricultural areas of the country, for two reasons. The first is ecological: away from the banks of the Ghis and Nekor rivers there is no stable water source, so subsistence farming depends on the dry cultivation of grains and fruit and on adequate rainfall, and drought has periodically brought famine, as in 1947. The problem was compounded by deforestation, which he attributes chiefly to the Spanish administration of the protectorate (1912–1956); citing the geographer Marvin Mikesell, he records that Spain "cut more trees in a decade than the local tribesmen could destroy in a century", leaving slopes exposed to erosion.<ref name="joseph1975" />

The second reason is political. Spanish colonial policy, in his account, extracted what economic value it could from the Rif while investing little, in part because Spain was itself poor and spent much of the period between 1912 and 1956 fighting the [[Republic of the Rif|Rif rebellion]] led by Abd el-Krim. He treats the Rif as part of the ''bled es-siba'', the country outside the effective administrative control of the Moroccan state. Given these conditions, ''kif'' remained an important cash crop, ranking with citrus, timber, cotton and palmetto fibre, and unlike them illegal. Its cultivation was concentrated almost exclusively in the tribal communities (''qabila'') of Ketama and Beni Seddath, in Al Hoceima Province, administered through a government-appointed ''caid'' at [[Targuist]]; ''kif'' grown elsewhere was regarded as inferior. Joseph records the local saying that "the land of Ketama likes only ''kif''", a comment both on the poverty of the soil for other crops and on the reputation of the local product.<ref name="joseph1975" />

== The kif economy ==

The harvested female plant was stripped of its leaves by hand; the stems were either discarded or retted in water so that the fibre could be worked into hats, baskets and shoes. The leaves were separated from the seed, chopped fine with a hand sickle and mixed with uncured tobacco. Because tobacco was a state monopoly, ''kif'' producers had to obtain their own supply, and Joseph notes that tobacco cost more by weight than ''kif''; the Riffians held that without it ''kif'' "doesn't have salt". He gives the admixture as roughly 0.3 tobacco to 0.7 ''kif'', correcting an earlier figure of equal parts reported by Tod Mikuriya.<ref name="joseph1975" />

Within Al Hoceima Province in 1965–1966, uncured tobacco cost about 40 dirhams a kilo, the natural ''kif'' plant sold at between 12 and 30 dirhams a kilo, and a kilo of ''kif'' ground and mixed with tobacco fetched about 70 dirhams, the difference reflecting the labour of preparation. Prices were higher in the towns, where more middlemen and closer police surveillance added to the cost, and higher again for tourists. The pipe used was the long-stemmed ''[[sebsi]]'', with a dismountable walnut-wood stem and a small baked-clay bowl, sold in the local markets (''suq'') for about three dirhams.<ref name="joseph1975" />

Joseph was frank about the limits of his data. Once ''kif'' left the Ketama farms as an illegal commodity, information on its transport to the towns and abroad was hard to obtain, and he was warned that investigating the traffic too closely would be unwise if he wished to remain in the country. He could, however, describe distribution within the Rif, where low-level middlemen carried loads of up to forty kilos by back or donkey along isolated paths at night. The regional market operated on a weekly cycle, each tribe holding its ''suq'' on a different day so that a trader could sell at a different market every day but Friday, and the cafés that stayed open between market days served as the terminals of local distribution, selling small quantities packaged in used matchboxes. He counted at least ten cafés catering to ''kif'' smokers in the town of [[Al Hoceima]].<ref name="joseph1975" />

On profitability he reports that a net income of 1,000 dirhams took about six months of labour for a barley crop but only about five days for a ''kif'' crop, an economic contrast that he treats as central to the crop's persistence.<ref name="joseph1975" />

== Attitudes to kif ==

Joseph found that ''kif'' was not regarded as an evil among Riffian men and, unlike alcohol, carried no religious stigma. The difference was written into the courts: a man caught smoking ''kif'' might be ignored or held overnight, whereas a Muslim could receive three to six months in prison for drinking, a leniency he attributes in part to the fact that many soldiers and police smoked ''kif''. The westernised literate elite, by contrast, disapproved of ''kif'' while themselves drinking alcohol, and stigmatised the ''kif'' smoker as poor and backward; ''kif'' smokers in turn regarded the elite as poor Muslims. In a 1959 confrontation, cultivators argued that if ''kif'' were to be suppressed then the import and export of alcohol should be banned too, and Joseph records that the point was not pressed, which the growers treated as a moral victory.<ref name="joseph1975" />

He notes that within the mountains ''kif'' was largely a habit of middle-aged and older men and belonged to the established order rather than, as with cannabis in some industrial societies, to youthful rebellion; younger men who wished to appear modern were more likely to drink beer or wine. ''Kif'' was not tied to ritual or mystical practice, was not encouraged by the Sufi brotherhoods and was, he says, mildly disapproved of by the more prominent religious orders; its use was motivated by pleasure and by the relief of everyday pressure rather than by any search for transcendence.<ref name="joseph1975" />

== History ==

Joseph treats the origins of ''kif'' in Morocco as too obscure to reconstruct precisely, canvassing introduction during the Arab conquests, by a pilgrim returning from Mecca, or by enslaved people brought from West Africa, and concludes only that its cultivation and use were firmly established by the 19th century. He observes that Spanish chroniclers of the early protectorate did not mention it, and reports being told that Franco paid Riffian recruits during the Spanish Civil War partly in ''kif''. Spain, he argues, made no serious effort to suppress cultivation, despite strict cannabis laws at home, and may inadvertently have entrenched regular ''kif'' smoking by creating a class of full-time native soldiers whose all-male professional life, distinct from that of the part-time tribal warrior, gave the habit a settled social setting.<ref name="joseph1975" />

He is sharply critical of the colonial framing, noting that the Spanish treated ''kif'' use as evidence of a "barbaric" character that lent a self-justifying motive to their "civilizing" venture. Post-independence attempts at eradication had, he writes, failed: an army campaign against the Ketama fields in the early 1960s came to nothing in the face of the terrain and armed resistance, and he suspected that such campaigns were largely for show, meant to answer international bodies such as the World Health Organization. Producers were well entrenched and politically powerful, an expanding European market lay within reach, and officials were open to bribes. The result, in his account, was a deliberate paradox: the government prohibited the sale of ''kif'' but not its production, and the occasional well-publicised arrest of a small dealer served mainly to signal an anti-cannabis position to the outside world while production, distribution and consumption continued unabated.<ref name="joseph1975" />

== Significance ==

Joseph's chapter is an early economic-anthropological account of ''kif'' in the Rif and one of the sources for ''[[Cannabis in Morocco]]'' and ''[[Cannabis in the Rif]]''. It documents the ''kif'' economy of the mid-1960s, before the shift towards [[Hashish in Morocco|hashish]] for the European export market and the later replacement of the traditional [[Landrace cannabis|landrace]] (the ''[[beldiya]]'') by imported hybrids, and its central argument, that ecological poverty and political marginalisation made ''kif'' the region's rational cash crop, anticipates the political-economy framing of later scholarship on Rif cannabis.<ref name="joseph1975" />

The chapter is also a period document. Its narrating voice is critical of Spanish colonial attitudes, but it uses the ethnographic vocabulary of its time ("Berber", "native", "tribe"); in this article the communities of the Ketama heartland are described in the current terms, with such usage retained only where it reports Joseph's own wording.<ref name="joseph1975" />

== See also ==

* ''[[Cannabis and Culture (1975)]]''
* [[Cannabis in Morocco]]
* [[Cannabis in the Rif]]
* [[Ketama]]
* [[Régie des Tabacs et du Kif]]
* ''[[Dagga: The History and Ethnographic Setting of Cannabis sativa in Southern Africa (1975)]]''

== References ==

{{Reflist}}

== External links ==

* [https://doi.org/10.1515/9783110812060.185 "The Economic Significance of Cannabis sativa in the Moroccan Rif"]

<div style="display:none;">
[[Has region documented::Morocco]]
[[Has preparation documented::Kif (cannabis and tobacco)]]
[[Has preparation documented::Pipe smoking (sebsi)]]
[[Has use documented::Recreational]]
[[Has use documented::Stimulant]]
[[Has use documented::Stress relief]]
[[Has use documented::Fibre]]
</div>

Dagga: The History and Ethnographic Setting of Cannabis sativa in Southern Africa (1975)

Eloise Zomia — Sat, 04 Jul 2026 15:00:36 GMT

Eloise Zomia: Style/staleness sweep: rewrite dash interruptions; bare See-also/links (no gloss dashes)

{{Infobox Book chapter
|title = Dagga: The History and Ethnographic Setting of ''Cannabis sativa'' in Southern Africa
|author = Brian M. du Toit
|author_dates = b. 1935
|parent_volume = Cannabis and Culture (1975)
|editor = Vera Rubin
|publisher = Mouton
|place = The Hague
|year = 1975
|pages = 81–116
|language = English
|doi = 10.1515/9783110812060.81
|image = vera-rubin-cannabis-culture.jpg
|image_caption = Cover of the parent volume, ''Cannabis and Culture'' (1975)
|growing_regions = Southern, eastern and central Africa
|preparations = Water-pipe smoking (gourd, horn, sandstone or earthenware, and ground or wet-sand types); rolled cigarette (modern urban use)
|uses_documented = Recreational, medicinal, work-enhancement, ritual, trade currency
|regional_cat = South Africa
}}
'''"Dagga: The History and Ethnographic Setting of ''Cannabis sativa'' in Southern Africa"''' is a chapter by '''Brian M. du Toit''' (born 1935), a South African-born anthropologist at the University of Florida, published in Vera Rubin (ed.), ''[[Cannabis and Culture (1975)|Cannabis and Culture]]'' (Mouton, The Hague, 1975, pp. 81–116).<ref name="duToit1975">{{cite book |last=du Toit |first=B.M. |chapter=Dagga: the history and ethnographic setting of Cannabis sativa in southern Africa |editor-last=Rubin |editor-first=V. |title=Cannabis and Culture |title-link=Cannabis and Culture (1975) |location=The Hague |publisher=Mouton |year=1975 |pages=81–116 |doi=10.1515/9783110812060.81}}</ref> Written while du Toit was directing a field study of cannabis use in Natal, the chapter draws together the scattered historical and ethnographic record of ''[[Cannabis sativa]]'' in southern and eastern Africa and proposes a route and chronology for its introduction.

Du Toit argues that cannabis reached the region long before European contact, most likely carried down the east coast of Africa by Arab and Swahili traders during the first centuries AD, and that its subsequent spread can be traced through three regional name-complexes: ''[[dagga]]'' in the south, variants of ''bangi'' in the east and centre, and variants of ''riamba'' or ''diamba'' in the Congo basin. He records patterns of use and smoking equipment among the region's peoples, notes the near-universal association of cannabis with the water-pipe, and observes that the herb was absent from West Africa until the Second World War.<ref name="duToit1975" />

== Author ==

Brian Murray du Toit (born 1935 in Bloemfontein) is a South African-born anthropologist who took his doctorate at the University of Oregon in 1963 and became professor of anthropology at the University of Florida.<ref name="dutoit-bio">{{cite web |title=Brian Murray du Toit |website=Prabook (World Biographical Encyclopedia) |url=https://prabook.com/web/brian_murray_du.toit/1701497 |access-date=2026-07-04}}</ref> At the time of writing he was principal investigator of a study of cannabis use in the South African province of Natal, funded by the United States National Institute of Mental Health, and he acknowledged the assistance of the Killie Campbell Africana Library in Durban.<ref name="duToit1975" />

He developed the survey into a book-length study, ''Cannabis in Africa'' (1980), which extended the continental distribution map and the etymological argument set out in the chapter.<ref name="duToit1980">{{cite book |last=du Toit |first=B.M. |title=Cannabis in Africa: A Survey of Its Distribution in Africa, and a Study of Cannabis Use and Users in Multi-ethnic South Africa |location=Rotterdam |publisher=A.A. Balkema |year=1980 |isbn=90-6191-030-7}}</ref> A later work, ''Cannabis, Alcohol and the South African Student'' (1991), reported two surveys of adolescent drug use.<ref name="dutoit-bio" />

== Argument and diffusion thesis ==

Du Toit places the origin of cannabis in the semi-desert regions south and east of the Caspian Sea, from where it spread to the Himalayas and across central Asia, and holds that it reached Africa as an introduced plant rather than a native one.<ref name="duToit1975" /> Reviewing earlier suggestions that the plant arrived comparatively late, by Portuguese traders returning from India or by migrating herders, he judges the historical and linguistic evidence to point to an earlier date.

His preferred route is down the east coast of Africa. Trade links between Arabia, India, Persia and the East African coast existed during the first centuries AD, with an Arab settlement recorded at Rhapta and later permanent Muslim settlements on Zanzibar and Pemba and at Kilwa by the twelfth century. Cannabis, in his reconstruction, moved inland with this trade while Bantu-speaking peoples were migrating southward, so that the plant was almost certainly present in the southern part of the continent before 1500. Du Toit notes that the argument rests on analogy and inference, since few early archaeological site reports record seeds, pollen or pipes.<ref name="duToit1975" />

In her introduction to the volume, Rubin observed that du Toit's early-diffusion hypothesis was supported by the companion chapter of Nikolaas van der Merwe, which reported fourteenth-century pipe bowls containing cannabis residue from around Lake Tana in Ethiopia.<ref name="rubin1975">{{cite book |editor-last=Rubin |editor-first=Vera |title=Cannabis and Culture |title-link=Cannabis and Culture (1975) |publisher=Mouton |location=The Hague |year=1975 |isbn=90-279-7669-4 |doi=10.1515/9783110812060}}</ref>

== Terminology and etymology ==

Du Toit builds a linguistic map of the continent from the terms by which cannabis is known, distinguishing three complexes: a southern area where it is called ''dagga''; an east-central area with variants of ''bangi'' or ''bhang'' (Thonga ''mbange'', Shona ''mbanji'', Venda ''mbanzhe'', Swahili ''banghi''); and a western area, in the Congo drainage, with variants of ''riamba'' or ''chamba''. He reads the ''bangi'' set as a marker of Indian origin carried by Arab traders, and the ''riamba'' set as a later adaptation among the peoples who received the plant from Swahili traders after the mid-nineteenth century.<ref name="duToit1975" />

For the southern term he follows the linguist G.S. Nienaber in deriving ''dagga'' from the Khoekhoe root ''daXa-b'', which denotes tobacco, with the qualified compound ''!amaXa-b'' ("green tobacco") used for cannabis specifically.<ref name="duToit1975" /> The same etymology is set out in his later book.<ref name="duToit1980" />

Du Toit stresses that the early written record is unreliable as evidence for cannabis, because European observers applied ''dagga'' and its many spellings (daccha in 1658, dacha, dagha, daggha and others) to more than one plant. In particular the term was widely used for ''Leonotis leonurus'' ("wild dagga"), an unrelated shrub smoked or made into cakes by Cape peoples, so that many early accounts of a plant that was chewed or eaten to produce intoxication describe ''Leonotis'' rather than cannabis.<ref name="duToit1975" />

== The ethnographic record ==

=== Khoikhoi and San ===

The earliest occurrence of the term du Toit identifies is in the 1658 journal of Jan van Riebeeck at the Cape, which records a "daccha" eaten by the [[Khoikhoi]] as a dry powder. Du Toit argues that this and most seventeenth-century references describe ''Leonotis leonurus'' rather than cannabis. Later observers separated the two: Le Vaillant in 1796 noted that the plant the Khoikhoi called ''dagha'' "is not indigenous: it is the hemp of Europe", and John Barrow in 1801 recorded that they cultivated hemp for its leaves, flowers and seeds rather than for fibre.<ref name="duToit1975" />

Du Toit records that cannabis and other plants were traded among the herders and the [[Khoisan|San]] hunters. Among the Nama-speaking Bergdama of present-day Namibia ''dagga'' served as a medium of exchange, and white farmers cultivated it to pay and retain their Khoikhoi and San workers. He cites Isaac Schapera's identification of the narcotic used by the San as cannabis, distinguishing it from the earlier ''Leonotis'' confusion.<ref name="duToit1975" />

=== Bantu-speaking peoples ===

Among the Bantu-speaking peoples of the south and east du Toit finds cannabis smoked with a water-pipe and generally called by a variant of ''bhang'' or, in the Nguni languages, ''intsangu''. He records its use among the [[Xhosa people|Xhosa]] and neighbouring southern Nguni, among the [[Sotho people|Sotho]] of present-day [[Lesotho]], and especially among the [[Zulu people|Zulu]], where it was smoked daily and where young warriors used it before battle to steel themselves for an attack.<ref name="duToit1975" /> Among the Swazi it was associated with diviners, who smoked it to concentrate on a difficult problem, and it was also used by praise singers.<ref name="duToit1975" />

=== Diffusion to central and eastern Africa ===

Following the plant northward, du Toit records David Livingstone's 1865 description of ''matokwane'' smoking among the Makololo, a Sotho offshoot, complete with the water-pipe and the practice of expelling smoke and water down a grooved stick. Cannabis was smoked in present-day Malawi and Zambia, where it was known by ''bhang''-derived names such as ''bange'' and ''lubange''. In the Congo basin, du Toit follows the term ''riamba'' among the Luba peoples, introduced by Swahili traders from Zanzibar after the 1850s, and notes the ''Bena-Riamba'' ("brothers of hemp") society formed there in the early 1870s.<ref name="duToit1975" /> He records comparable use eastward among the Nyamwezi and others, and among some non-Bantu-speaking peoples, including the Sandawe and Central African forest foragers such as the Efe and Mbuti, among whom the practice was said to be long-established.<ref name="duToit1975" />

=== Absence in West Africa ===

Du Toit finds that cannabis was not present in West Africa before the Second World War. Citing T. Asuni and others, he notes that the plant was not indigenous to Nigeria, had no traditional name there and appears to have been introduced during and after the war by returning soldiers and by sailors. In Ghana it was first reported in illegal cultivation in 1960 and was known as ''wee'', which he takes to be a corruption of "weed"; it was smoked only in rolled cigarettes, without the water-pipe and other equipment of the older complexes.<ref name="duToit1975" />

== Smoking methods and paraphernalia ==

Du Toit treats the water-pipe as the defining feature of the older African cannabis complexes, and classifies the forms found across the region. Type I uses a calabash or other gourd as the water container; Type II a hollow horn, common where large antelope or long-horned cattle were kept; and Type III a moulded block of sandstone or fired earthenware. Type IV comprises pipes formed in the ground or in wet sand, made when a portable pipe was lacking or when smoking had to be concealed. Type V covers modern adaptations improvised from a bottle, an enamel basin, a spent cartridge case or other found materials.<ref name="duToit1975" />

He records that white farmers had customarily given labourers a daily ration of ''dagga'' alongside the wine-and-brandy "tot system", and that this reward was outlawed early in the twentieth century as smoking became illegal. Prohibition, he argues, drove the practice underground and shifted it away from the water-pipe: by his own time older men still used the pipe with a bought clay bowl, while most younger people, of both sexes, smoked a cigarette form and dispensed with the water-pipe altogether.<ref name="duToit1975" />

== Prohibition and early research ==

Du Toit sketches the legal and scientific record of ''dagga'' in twentieth-century South Africa. He notes an early nineteenth-century proposal by the missionary Latrobe to penalise its use, the 1923 request by the government of the Union of South Africa to the League of Nations that cannabis be treated as a habit-forming drug, and the prohibition enacted under the Medical, Dental and Pharmacy Act 13 of 1928, whose Article 69 forbade the cultivation, sale, possession and smoking of "Indian hemp or dagga or intsangu".<ref name="duToit1975" />

He reviews the early clinical literature critically. A 1938 investigation of non-white patients at the Pretoria Mental Hospital concluded that ''dagga'' produced effects similar to those of alcohol and could not clearly separate cause from effect in the "moral degeneration" ascribed to users. Du Toit is sceptical of a later study of white servicemen at Voortrekkerhoogte that treated cannabis as a gateway to harder drugs, pointing out that it reported poly-drug users rather than cannabis users alone. He calls for controlled research that is not culture-bound, and describes his own National Institute of Mental Health project in Natal as a first step towards a broader study of cannabis in Africa.<ref name="duToit1975" />

== Significance ==

Du Toit's chapter is one of the foundational secondary syntheses for the history of cannabis in [[South Africa]] and the wider region, and it is among the sources underpinning ''[[Cannabis in South Africa]]''. It supplies the standard diffusion thesis (introduction down the east African coast by Arab and Swahili traders), the ''dagga'' etymology from Khoekhoe ''daXa-b'', the three-part terminological map of the continent, and a detailed record of smoking paraphernalia.<ref name="duToit1975" />

Two of its cautions carry into later work. First, the plant identity of the earliest Cape "dagga" records is disputed: because ''dagga'' was applied to ''Leonotis leonurus'' as well as to cannabis, van Riebeeck's 1658 "daccha" is best treated as the first record of the term rather than the first record of cannabis. Second, du Toit himself frames much of the colonial-era "dagga and insanity" literature as a scientific question left open rather than settled. The chapter's colonial and racial terminology ("Hottentot", "Bushmen", "Kaffir", "native") reflects its 1970s sources and is retained here only where it appears in attributed quotation.<ref name="duToit1975" />

== See also ==

* ''[[Cannabis and Culture (1975)]]''
* [[Cannabis in South Africa]]
* [[South Africa]]
* [[Indian Hemp Drugs Commission]]
* ''[[Ethnobotanical Aspects of Cannabis in Southeast Asia (1975)]]''

== References ==

{{Reflist}}

== External links ==

* [https://doi.org/10.1515/9783110812060.81 "Dagga: The History and Ethnographic Setting of Cannabis sativa in Southern Africa"]

<div style="display:none;">
[[Has region documented::South Africa]]
[[Has region documented::Lesotho]]
[[Has region documented::Eswatini]]
[[Has region documented::Botswana]]
[[Has region documented::Namibia]]
[[Has region documented::Zimbabwe]]
[[Has region documented::Zambia]]
[[Has region documented::Malawi]]
[[Has region documented::Mozambique]]
[[Has region documented::Angola]]
[[Has region documented::Democratic Republic of the Congo]]
[[Has region documented::Tanzania]]
[[Has region documented::Uganda]]
[[Has region documented::Madagascar]]
[[Has region documented::Nigeria]]
[[Has region documented::Ghana]]
[[Has preparation documented::Water-pipe smoking]]
[[Has preparation documented::Ground or wet-sand pipe]]
[[Has preparation documented::Rolled cigarette]]
[[Has use documented::Recreational]]
[[Has use documented::Medicinal]]
[[Has use documented::Work-enhancement]]
[[Has use documented::Ritual]]
[[Has use documented::Trade currency]]
</div>

Cannabis and Culture (1975)

Eloise Zomia — Fri, 03 Jul 2026 18:03:52 GMT

Eloise Zomia: Wikilink the four now-deployed Cannabis and Culture chapter pages in Contents (du Toit, Joseph, Hasan, Fisher)

{{Infobox book
| title = Cannabis and Culture
| image = vera-rubin-cannabis-culture.jpg
| image_caption = Front cover of the 1975 Mouton edition
| editor = Vera Rubin
| publisher = Mouton
| place = The Hague
| year = 1975
| pages = xiv + 598
| language = English
| subjects = Cannabis history, Ethnobotany, Cultural anthropology, Psychoactive plants
| relevance = An early cross-cultural survey of traditional cannabis cultures, with regional chapters on southern Africa, the Moroccan Rif, India, Nepal and Jamaica that are among the earliest academic records of the folk cultivation traditions behind today's threatened landraces.
| isbn = 90-279-7669-4
| doi = 10.1515/9783110812060
}}
'''''Cannabis and Culture''''' is a 1975 edited volume on the cross-cultural study of cannabis, edited by the American anthropologist Vera Rubin and published by Mouton in its World Anthropology series. It collects an editor's introduction and 35 papers first presented at a conference on Cross-Cultural Perspectives on Cannabis convened in Chicago in August 1973 during the IXth International Congress of Anthropological and Ethnological Sciences, with case studies drawn from Africa, Asia, the Caribbean, Latin America, Europe and North America.<ref name="rubin1975">{{cite book |editor-last=Rubin |editor-first=Vera |title=Cannabis and Culture |publisher=Mouton |location=The Hague |year=1975 |isbn=90-279-7669-4 |oclc=3022560 |doi=10.1515/9783110812060}}</ref>

In her introduction Rubin distinguishes two broad configurations of cannabis use: a traditional "ganja complex", a multipurpose folk stream involving fibre, food, folk medicine, work and ritual and generally confined to peasant and labouring classes, and a modern "marihuana complex" centred on the mood-altering use of the plant and associated with middle-class and youth cultures from the later nineteenth century onward. The volume also carries a taxonomic reconsideration of the plant, including a proposal by Richard Evans Schultes and co-authors for a polytypic classification of ''Cannabis''.<ref name="rubin1975-intro">{{cite book |last=Rubin |first=Vera |chapter=Introduction |title=Cannabis and Culture |editor-last=Rubin |editor-first=Vera |publisher=Mouton |location=The Hague |year=1975 |pages=1–11}}</ref>

== Editor ==

Vera Rubin (1911–1985) was an American anthropologist whose work centred on the Caribbean. In 1955 she founded the Research Institute for the Study of Man in New York and directed it until her death.<ref name="rubin-bio">{{cite encyclopedia |title=Rubin, Vera (1911–1985) |encyclopedia=Dictionary of Women Worldwide |publisher=Gale |year=2007 |via=Encyclopedia.com |url=https://www.encyclopedia.com/women/dictionaries-thesauruses-pictures-and-press-releases/rubin-vera-1911-1985}}</ref> For the National Institute of Mental Health she and Lambros Comitas directed a study of long-term cannabis use in Jamaica, published in the same year as ''Cannabis and Culture'' under the title ''Ganja in Jamaica: A Medical Anthropological Study of Chronic Marihuana Use''.<ref name="ganjajamaica">{{cite book |last1=Rubin |first1=Vera |last2=Comitas |first2=Lambros |title=Ganja in Jamaica: A Medical Anthropological Study of Chronic Marihuana Use |publisher=Mouton |location=The Hague |year=1975}}</ref> Four of the volume's chapters draw on that project.<ref name="rubin1975-intro" />

== Background ==

The volume originated in a conference on Cross-Cultural Perspectives on Cannabis, held in Chicago in August 1973 as part of the IXth International Congress of Anthropological and Ethnological Sciences. The conference was attended by around sixty scientists working in anthropology, botany, genetics, pharmacology, psychiatry and sociology, and was supported by a grant to the Smithsonian Institution from the Center for Studies of Narcotic and Drug Abuse of the National Institute of Mental Health.<ref name="rubin1975-intro" />

''Cannabis and Culture'' appeared in the World Anthropology series, a set of some two thousand papers from the 1973 Congress issued under the general editorship of Sol Tax. Tax described the series as an attempt to draw contributors from many parts of the world rather than only the industrialised nations that had founded the discipline, and each volume was designed to be self-contained.<ref name="tax1975">{{cite book |last=Tax |first=Sol |chapter=General editor's preface |title=Cannabis and Culture |editor-last=Rubin |editor-first=Vera |publisher=Mouton |location=The Hague |year=1975 |pages=v–vii}}</ref> A companion volume from the same Congress addressed the cross-cultural study of alcohol.<ref name="tax1975" /> The volume was later reissued as a digital edition by De Gruyter Mouton.<ref name="rubin1975" />

The collection's geographic range is wide. Its regional chapters include Brian du Toit on the history and ethnographic setting of ''Cannabis sativa'' in southern Africa, Roger Joseph on the economic significance of cannabis in the Moroccan Rif, Marie Alexandrine Martin on Southeast Asia, Khwaja A. Hasan on India, James Fisher on Nepal and four chapters on [[Jamaica]] drawn from a field project directed by Rubin.<ref name="rubin1975" /> Du Toit's chapter is among the sources underpinning [[Cannabis in South Africa]] and Joseph's among those for [[Cannabis in Morocco]]. Martin's chapter, on [[Cambodia]] and its neighbours, is catalogued separately as ''[[Ethnobotanical Aspects of Cannabis in Southeast Asia (1975)]]''.

== Argument ==

Rubin's introduction frames cannabis as one of the most widely used psychoactive plants after tobacco and alcohol, and one of the oldest cultivated plants, grown for fibre, food and medicine long before its modern reputation as an intoxicant.<ref name="rubin1975-intro" />

Her central organising claim is that cannabis has moved through two distinct cultural streams. The first, which she terms the "ganja complex" after the Hindi word and the ethnographic record of the 1893 [[Indian Hemp Drugs Commission]], is a traditional folk configuration based on small-scale cultivation. In it cannabis served as a source of fibre, food and folk medicine for people and animals, and as an aid to work, ritual and sociability, its use largely confined to peasants, fishermen, artisans and labourers and, among elites, to priestly classes. The second, the "marihuana complex", is more recent and more narrowly psychoactive, traced from the formation of the Club des Hachichins in Paris in the mid-nineteenth century through the mid-twentieth-century diffusion of recreational use to North America and to Western-oriented youth elsewhere, and associated chiefly with middle-class and upper-class users. Rubin argues that the two complexes differ in form, function and social class composition.<ref name="rubin1975-intro" />

The volume also advances a botanical argument. William T. Stearn re-examines the Linnaean typification of ''Cannabis sativa'', and Richard Evans Schultes with William M. Klein, Timothy Plowman and Tom E. Lockwood argue for a polytypic classification of the genus, which Rubin describes as the first major reconsideration of cannabis taxonomy since Linnaeus and Lamarck.<ref name="rubin1975-intro" />

== Contents ==

The volume opens with an introduction by Vera Rubin and is then divided into five parts.<ref name="rubin1975" />

'''Part One: Ethnobotany and diffusion'''
<ol>
<li>"Typification of Cannabis sativa L." (William T. Stearn)</li>
<li>"Cannabis: An Example of Taxonomic Neglect" (Richard Evans Schultes, William M. Klein, Timothy Plowman and Tom E. Lockwood)</li>
<li>"Early Diffusion and Folk Uses of Hemp" (Sula Benet)</li>
<li>"The Origin and Use of Cannabis in Eastern Asia: Their Linguistic-Cultural Implications" (Hui-Lin Li)</li>
<li>"[[Ethnobotanical Aspects of Cannabis in Southeast Asia (1975)|Ethnobotanical Aspects of Cannabis in Southeast Asia]]" (Marie Alexandrine Martin)</li>
<li>"Cannabis Smoking in 13th–14th Century Ethiopia: Chemical Evidence" (Nikolaas J. van der Merwe)</li>
<li>"[[Dagga: The History and Ethnographic Setting of Cannabis sativa in Southern Africa (1975)|Dagga: The History and Ethnographic Setting of Cannabis sativa in Southern Africa]]" (Brian M. du Toit)</li>
</ol>

'''Part Two: Sociocultural aspects of the traditional complex'''
<ol start="8">
<li>"The Social Nexus of Ganja in Jamaica" (Lambros Comitas)</li>
<li>"The Ritual Use of Cannabis in Mexico" (Roberto Williams-Garcia)</li>
<li>"Cannabis and Cultural Groups in a Colombian Municipio" (William L. Partridge)</li>
<li>"Patterns of Marihuana Use in Brazil" (Harry William Hutchinson)</li>
<li>"[[Economic Significance of Cannabis sativa in the Moroccan Rif (1975)|Economic Significance of Cannabis sativa in the Moroccan Rif]]" (Roger Joseph)</li>
<li>"Traditional Patterns of Hashish Use in Egypt" (Ahmad M. Khalifa)</li>
<li>"The Traditional Role and Symbolism of Hashish among Moroccan Jews in Israel and the Effect of Acculturation" (Phyllis Palgi)</li>
<li>"The Social and Cultural Context of Cannabis Use in Rwanda" (Helen Codere)</li>
<li>"Réunion: Cannabis in a Pluricultural and Polyethnic Society" (Jean Benoist)</li>
<li>"[[Social Aspects of the Use of Cannabis in India (1975)|Social Aspects of the Use of Cannabis in India]]" (Khwaja A. Hasan)</li>
<li>"[[Cannabis in Nepal: An Overview (1975)|Cannabis in Nepal: An Overview]]" (James Fisher)</li>
<li>"The 'Ganja Vision' in Jamaica" (Vera Rubin)</li>
</ol>

'''Part Three: Medical, pharmacological and ethnometabolic studies'''
<ol start="20">
<li>"Cannabis sativa L. (Marihuana): VI Variations in Marihuana Preparations and Usage – Chemical and Pharmacological Consequences" (Alvin B. Segelman, R. Duane Sofia and Florence H. Segelman)</li>
<li>"Social and Medical Aspects of the Use of Cannabis in Brazil" (Alvaro Rubim de Pinho)</li>
<li>"Sociocultural and Epidemiological Aspects of Hashish Use in Greece" (C. Stefanis, C. Ballas and D. Madianou)</li>
<li>"Marihuana and Genetic Studies in Colombia: The Problem in the City and in the Country" (B. R. Elejalde)</li>
<li>"Cannabis Usage in Pakistan: A Pilot Study of Long Term Effects on Social Status and Physical Health" (Munir A. Khan, Assad Abbas and Knud Jensen)</li>
<li>"The Significance of Marihuana in a Small Agricultural Community in Jamaica" (Joseph Schaeffer)</li>
<li>"Chronic Cannabis Use in Costa Rica: A Description of Research Objectives" (W. E. Carter and W. J. Coggins)</li>
</ol>

'''Part Four: Traditional usage of other psychoactive plants'''
<ol start="27">
<li>"Man, Culture and Hallucinogens: An Overview" (Marlene Dobkin de Rios)</li>
<li>"Peyote and Huichol Worldview: The Structure of a Mystic Vision" (Barbara G. Myerhoff)</li>
<li>"Magico-Religious Use of Tobacco among South American Indians" (Johannes Wilbert)</li>
<li>"Coca Chewing: A New Perspective" (Roderick E. Burchard)</li>
<li>"Cannabis or Alcohol: The Jamaican Experience" (Michael H. Beaubrun)</li>
</ol>

'''Part Five: The modern complex in North America'''
<ol start="32">
<li>"Cannabis Use in Canada" (Melvyn Green and Ralph D. Miller)</li>
<li>"Memories, Reflections and Myths: The American Marihuana Commission" (Louis Bozzetti and Jack Blaine)</li>
<li>"Sociocultural Factors in Marihuana Use in the United States" (William H. McGlothlin)</li>
<li>"Intersections of Anthropology and Law in the Cannabis Area" (John Kaplan)</li>
</ol>

== Reception ==

The volume was reviewed in ''Medical History'' in 1977.<ref name="medhist1977">{{cite journal |title=Review: Vera Rubin (ed.), Cannabis and Culture |journal=Medical History |year=1977 |volume=21 |issue=4 |pages=471 |doi=10.1017/S0025727300039594}}</ref>

Writing in 2021, the historians James H. Mills and Lucas Richert placed ''Cannabis and Culture'' among the academic studies of cannabis that followed the drug concerns of the 1960s, and noted that Rubin's introduction took what would now be read as a global perspective in describing the "ethnobotanic diffusion" of the plant. They also questioned her "ganja complex" model, which treated the South Asian appetite for cannabis as long-standing and unchanging.<ref name="millsRichert2021">{{cite book |last1=Mills |first1=James H. |last2=Richert |first2=Lucas |chapter=Introduction: Breaking News: "Weed Kills Coronavirus" |title=Cannabis: Global Histories |editor1-last=Richert |editor1-first=Lucas |editor2-last=Mills |editor2-first=James H. |publisher=The MIT Press |location=Cambridge, Massachusetts |year=2021 |isbn=9780262045209}}</ref>

== See also ==

* [[Cannabis: Global Histories (2021)]]
* [[The African Roots of Marijuana (2019)]]
* [[Ganja matters (2026)]]
* [[Ethnobotanical Aspects of Cannabis in Southeast Asia (1975)]]
* [[Indian Hemp Drugs Commission]]

== References ==

{{Reflist}}

Research:2025-01-01/Journal article/comparative-analysis-of-cannabis-legalization-in-south-africa-and-zimbabwe-trajectories-commonalities-and

Eloise Zomia — Fri, 03 Jul 2026 12:40:26 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2025-01-01
|paper_name=Comparative Analysis of Cannabis Legalization in South Africa and Zimbabwe: Trajectories, Commonalities, and Divergences
|paper_kind=Journal article
|year=2025
|authors=Simon Howell, Clemence Rusenga
|venue=Journal of Illicit Economies and Development
|doi=10.31389/jied.283
|source=https://doi.org/10.31389/jied.283
|country=South Africa
|summary=A comparative analysis of cannabis legalisation in South Africa and Zimbabwe, examining the trajectories, commonalities and divergences of reform. Documents how licensing costs and commercial frameworks have excluded smallholders in both countries.
|record_created=2026-07-03
}}

[[Category:Research Item]]

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[[Has research date::2025-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::Comparative Analysis of Cannabis Legalization in South Africa and Zimbabwe: Trajectories, Commonalities, and Divergences]]
[[Has research type::Journal article]]
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[[Has research venue::Journal of Illicit Economies and Development]]
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[[Has source URL::https://doi.org/10.31389/jied.283]]
[[Has research summary::A comparative analysis of cannabis legalisation in South Africa and Zimbabwe, examining the trajectories, commonalities and divergences of reform. Documents how licensing costs and commercial frameworks have excluded smallholders in both countries.]]
[[Has country::South Africa]]
[[Has country::Zimbabwe]]
</div>

Research:2008-01-01/Journal article/a-review-of-plants-used-in-divination-in-southern-africa-and-their-psychoactive-effects

Eloise Zomia — Fri, 03 Jul 2026 11:46:15 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2008-01-01
|paper_name=A review of plants used in divination in southern Africa and their psychoactive effects
|paper_kind=Journal article
|year=2008
|authors=J.F. Sobiecki
|venue=Southern African Humanities
|source=https://www.sahumanities.org/index.php/sah/article/view/369
|country=South Africa
|summary=A review of 85 plant species used for divination by southern African Bantu-speaking peoples, finding that about 45% show psychoactive properties. Regional context for the southern-African ethnobotany thread.
|record_created=2026-07-03
}}

[[Category:Research Item]]

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[[Has research date::2008-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::A review of plants used in divination in southern Africa and their psychoactive effects]]
[[Has research type::Journal article]]
[[Has research authors::J.F. Sobiecki]]
[[Has research venue::Southern African Humanities]]
[[Has research year::2008]]
[[Has source URL::https://www.sahumanities.org/index.php/sah/article/view/369]]
[[Has research summary::A review of 85 plant species used for divination by southern African Bantu-speaking peoples, finding that about 45% show psychoactive properties. Regional context for the southern-African ethnobotany thread.]]
[[Has country::South Africa]]
</div>

Research:2013-05-25/Journal article/plants-of-xhosa-people-in-the-transkei-region-of-eastern-cape-south-africa-with-major-pharmacological

Eloise Zomia — Fri, 03 Jul 2026 11:46:14 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2013-05-25
|paper_name=Plants of Xhosa people in the Transkei region of Eastern Cape (South Africa) with major pharmacological and therapeutic properties
|paper_kind=Journal article
|year=2013
|authors=R.B. Bhat
|venue=Journal of Medicinal Plants Research
|source=https://academicjournals.org/journal/JMPR/article-abstract/C7203F824837
|pdf=https://academicjournals.org/article/article1380726174_Bhat.pdf
|country=South Africa
|summary=An ethnobotanical survey recording medicinal and other uses of 35 plant species among Xhosa people in the Transkei region of the Eastern Cape, including Cannabis sativa (umya, intsangu, matakwane) as a leaf medicine. A single-author survey in a low-prestige journal, attributed as such. The publisher DOI 10.5897/JMPR12.973 does not resolve, so the record cites the Academic Journals URL.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2013-05-25]]
[[Has record created::2026-07-03]]
[[Has research title::Plants of Xhosa people in the Transkei region of Eastern Cape (South Africa) with major pharmacological and therapeutic properties]]
[[Has research type::Journal article]]
[[Has research authors::R.B. Bhat]]
[[Has research venue::Journal of Medicinal Plants Research]]
[[Has research year::2013]]
[[Has source URL::https://academicjournals.org/journal/JMPR/article-abstract/C7203F824837]]
[[Has PDF URL::https://academicjournals.org/article/article1380726174_Bhat.pdf]]
[[Has research summary::An ethnobotanical survey recording medicinal and other uses of 35 plant species among Xhosa people in the Transkei region of the Eastern Cape, including Cannabis sativa (umya, intsangu, matakwane) as a leaf medicine. A single-author survey in a low-prestige journal, attributed as such. The publisher DOI 10.5897/JMPR12.973 does not resolve, so the record cites the Academic Journals URL.]]
[[Has country::South Africa]]
</div>

Research:2019-01-01/Journal article/turning-cannabis-into-cash-agrarian-change-and-lesothos-evolving-experience

Eloise Zomia — Fri, 03 Jul 2026 11:38:38 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2019-01-01
|paper_name=Turning Cannabis Into Cash: Agrarian Change and Lesotho's Evolving Experience
|paper_kind=Journal article
|year=2019
|authors=Julian Bloomer
|venue=EchoGéo
|doi=10.4000/echogeo.17612
|source=https://doi.org/10.4000/echogeo.17612
|country=Lesotho
|summary=Examines agrarian change and Lesotho's evolving cannabis experience, noting Lesotho as a major producer supplying South Africa and the first African country to license medical cannabis, with smallholders excluded.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2019-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::Turning Cannabis Into Cash: Agrarian Change and Lesotho's Evolving Experience]]
[[Has research type::Journal article]]
[[Has research authors::Julian Bloomer]]
[[Has research venue::EchoGéo]]
[[Has research year::2019]]
[[Has DOI::10.4000/echogeo.17612]]
[[Has source URL::https://doi.org/10.4000/echogeo.17612]]
[[Has research summary::Examines agrarian change and Lesotho's evolving cannabis experience, noting Lesotho as a major producer supplying South Africa and the first African country to license medical cannabis, with smallholders excluded.]]
[[Has country::Lesotho]]
</div>

Research:2009-12-01/Journal article/using-a-political-ecology-framework-to-examine-extra-legal-livelihood-strategies-a-lesotho-based-case-study

Eloise Zomia — Fri, 03 Jul 2026 11:38:37 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2009-12-01
|paper_name=Using a political ecology framework to examine extra-legal livelihood strategies: a Lesotho-based case study of cultivation of and trade in cannabis
|paper_kind=Journal article
|year=2009
|authors=Julian Bloomer
|venue=Journal of Political Ecology
|doi=10.2458/v16i1.21691
|source=https://doi.org/10.2458/v16i1.21691
|country=Lesotho
|summary=Uses a political-ecology framework to examine cannabis cultivation and trade as an extra-legal livelihood strategy in Lesotho. Place-anchored to Lesotho within the cross-border production complex.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2009-12-01]]
[[Has record created::2026-07-03]]
[[Has research title::Using a political ecology framework to examine extra-legal livelihood strategies: a Lesotho-based case study of cultivation of and trade in cannabis]]
[[Has research type::Journal article]]
[[Has research authors::Julian Bloomer]]
[[Has research venue::Journal of Political Ecology]]
[[Has research year::2009]]
[[Has DOI::10.2458/v16i1.21691]]
[[Has source URL::https://doi.org/10.2458/v16i1.21691]]
[[Has research summary::Uses a political-ecology framework to examine cannabis cultivation and trade as an extra-legal livelihood strategy in Lesotho. Place-anchored to Lesotho within the cross-border production complex.]]
[[Has country::Lesotho]]
</div>

Research:2006-09-30/Journal article/the-significance-of-the-use-of-ganja-as-a-religious-ritual-in-the-rastafari-movement

Eloise Zomia — Fri, 03 Jul 2026 11:38:36 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2006-09-30
|paper_name=The significance of the use of ganja as a religious ritual in the Rastafari movement
|paper_kind=Journal article
|year=2006
|authors=S.P. Pretorius
|venue=Verbum et Ecclesia
|doi=10.4102/ve.v27i3.199
|source=https://doi.org/10.4102/ve.v27i3.199
|country=South Africa
|summary=A religious-studies treatment of the significance of ganja as a Rastafari ritual, tied to the 2002 Prince ruling. A dedicated South African account of the sacrament.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2006-09-30]]
[[Has record created::2026-07-03]]
[[Has research title::The significance of the use of ganja as a religious ritual in the Rastafari movement]]
[[Has research type::Journal article]]
[[Has research authors::S.P. Pretorius]]
[[Has research venue::Verbum et Ecclesia]]
[[Has research year::2006]]
[[Has DOI::10.4102/ve.v27i3.199]]
[[Has source URL::https://doi.org/10.4102/ve.v27i3.199]]
[[Has research summary::A religious-studies treatment of the significance of ganja as a Rastafari ritual, tied to the 2002 Prince ruling. A dedicated South African account of the sacrament.]]
[[Has country::South Africa]]
</div>

Research:2012-12-30/Journal article/the-rastafari-movement-in-south-africa-before-and-after-apartheid

Eloise Zomia — Fri, 03 Jul 2026 11:38:34 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2012-12-30
|paper_name=The Rastafari movement in South Africa: Before and after apartheid
|paper_kind=Journal article
|year=2012
|authors=Midas Chawane
|venue=New Contree
|doi=10.4102/nc.v65i0.311
|source=https://doi.org/10.4102/nc.v65i0.311
|country=South Africa
|summary=The principal synthesis of the Rastafari movement in South Africa before and after apartheid, dating formal organisation to December 1997 with individuals present from the late 1970s, and recording the ganja sacrament.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2012-12-30]]
[[Has record created::2026-07-03]]
[[Has research title::The Rastafari movement in South Africa: Before and after apartheid]]
[[Has research type::Journal article]]
[[Has research authors::Midas Chawane]]
[[Has research venue::New Contree]]
[[Has research year::2012]]
[[Has DOI::10.4102/nc.v65i0.311]]
[[Has source URL::https://doi.org/10.4102/nc.v65i0.311]]
[[Has research summary::The principal synthesis of the Rastafari movement in South Africa before and after apartheid, dating formal organisation to December 1997 with individuals present from the late 1970s, and recording the ganja sacrament.]]
[[Has country::South Africa]]
</div>

Research:2017-03-29/Journal article/cannabis-and-tobacco-in-precolonial-and-colonial-africa

Eloise Zomia — Fri, 03 Jul 2026 11:38:33 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2017-03-29
|paper_name=Cannabis and Tobacco in Precolonial and Colonial Africa
|paper_kind=Journal article
|year=2017
|authors=Chris S. Duvall
|venue=Oxford Research Encyclopedia of African History
|doi=10.1093/acrefore/9780190277734.013.44
|source=https://doi.org/10.1093/acrefore/9780190277734.013.44
|summary=Surveys cannabis and tobacco in precolonial and colonial Africa, inferring a maritime introduction to East Africa around 1000 CE with most spread after 1500. Continental in scope; pairs with the on-wiki Duvall EchoGéo record.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2017-03-29]]
[[Has record created::2026-07-03]]
[[Has research title::Cannabis and Tobacco in Precolonial and Colonial Africa]]
[[Has research type::Journal article]]
[[Has research authors::Chris S. Duvall]]
[[Has research venue::Oxford Research Encyclopedia of African History]]
[[Has research year::2017]]
[[Has DOI::10.1093/acrefore/9780190277734.013.44]]
[[Has source URL::https://doi.org/10.1093/acrefore/9780190277734.013.44]]
[[Has research summary::Surveys cannabis and tobacco in precolonial and colonial Africa, inferring a maritime introduction to East Africa around 1000 CE with most spread after 1500. Continental in scope; pairs with the on-wiki Duvall EchoGéo record.]]
</div>

Research:1996-11-01/Journal article/from-rituals-of-rapture-to-dependence-the-political-economy-of-khoikhoi-narcotic-consumption-c-1487-1870

Eloise Zomia — Fri, 03 Jul 2026 11:38:32 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=1996-11-01
|paper_name=From Rituals of Rapture to Dependence: The Political Economy of Khoikhoi Narcotic Consumption, c.1487–1870
|paper_kind=Journal article
|year=1996
|authors=David Gordon
|venue=South African Historical Journal
|doi=10.1080/02582479608671247
|source=https://doi.org/10.1080/02582479608671247
|country=South Africa
|summary=Argues that the intoxicant the seventeenth-century eastern Khoikhoi cultivated and traded, and van Riebeeck's 1658 dacha, was probably canna (a fermented Karoo root) rather than cannabis, and that dagga came to denote cannabis in Cape trade only by the eighteenth century. Use for the canna-versus-cannabis distinction, not for a precolonial cannabis-trade claim.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::1996-11-01]]
[[Has record created::2026-07-03]]
[[Has research title::From Rituals of Rapture to Dependence: The Political Economy of Khoikhoi Narcotic Consumption, c.1487–1870]]
[[Has research type::Journal article]]
[[Has research authors::David Gordon]]
[[Has research venue::South African Historical Journal]]
[[Has research year::1996]]
[[Has DOI::10.1080/02582479608671247]]
[[Has source URL::https://doi.org/10.1080/02582479608671247]]
[[Has research summary::Argues that the intoxicant the seventeenth-century eastern Khoikhoi cultivated and traded, and van Riebeeck's 1658 dacha, was probably canna (a fermented Karoo root) rather than cannabis, and that dagga came to denote cannabis in Cape trade only by the eighteenth century. Use for the canna-versus-cannabis distinction, not for a precolonial cannabis-trade claim.]]
[[Has country::South Africa]]
</div>

Research:2005-05-01/Journal article/antiquity-of-the-smoking-habit-in-africa

Eloise Zomia — Fri, 03 Jul 2026 11:38:31 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2005-05-01
|paper_name=Antiquity of the smoking habit in Africa
|paper_kind=Journal article
|year=2005
|authors=Nikolaas J. van der Merwe
|venue=Transactions of the Royal Society of South Africa
|doi=10.1080/00359190509520494
|source=https://doi.org/10.1080/00359190509520494
|country=South Africa
|summary=Argues that the smoking habit in Africa predates tobacco, citing dated pipe finds including cannabis residue at Lalibela Cave, Ethiopia, around 1320 CE. The East-African comparandum for early southern-African smoking.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2005-05-01]]
[[Has record created::2026-07-03]]
[[Has research title::Antiquity of the smoking habit in Africa]]
[[Has research type::Journal article]]
[[Has research authors::Nikolaas J. van der Merwe]]
[[Has research venue::Transactions of the Royal Society of South Africa]]
[[Has research year::2005]]
[[Has DOI::10.1080/00359190509520494]]
[[Has source URL::https://doi.org/10.1080/00359190509520494]]
[[Has research summary::Argues that the smoking habit in Africa predates tobacco, citing dated pipe finds including cannabis residue at Lalibela Cave, Ethiopia, around 1320 CE. The East-African comparandum for early southern-African smoking.]]
[[Has country::South Africa]]
</div>

Research:2024-05-24/Journal article/the-use-and-potential-abuse-of-psychoactive-plants-in-southern-africa-an-overview-of-evidence-and-future

Eloise Zomia — Fri, 03 Jul 2026 11:38:30 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2024-05-24
|paper_name=The use and potential abuse of psychoactive plants in southern Africa: an overview of evidence and future potential
|paper_kind=Journal article
|year=2024
|authors=Norman Zimunda Nyazema, Jonathan Tinotenda Chanyandura, Bronwyn Egan
|venue=Frontiers in Pharmacology
|doi=10.3389/fphar.2024.1269247
|source=https://doi.org/10.3389/fphar.2024.1269247
|country=South Africa
|summary=An overview of the use and potential abuse of psychoactive plants in southern Africa, situating cannabis among healer-used species and reinforcing that Leonotis is not true dagga.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2024-05-24]]
[[Has record created::2026-07-03]]
[[Has research title::The use and potential abuse of psychoactive plants in southern Africa: an overview of evidence and future potential]]
[[Has research type::Journal article]]
[[Has research authors::Norman Zimunda Nyazema, Jonathan Tinotenda Chanyandura, Bronwyn Egan]]
[[Has research venue::Frontiers in Pharmacology]]
[[Has research year::2024]]
[[Has DOI::10.3389/fphar.2024.1269247]]
[[Has source URL::https://doi.org/10.3389/fphar.2024.1269247]]
[[Has research summary::An overview of the use and potential abuse of psychoactive plants in southern Africa, situating cannabis among healer-used species and reinforcing that Leonotis is not true dagga.]]
[[Has country::South Africa]]
</div>

Research:2015-11-01/Journal article/wild-cannabis-a-review-of-the-traditional-use-and-phytochemistry-of-leonotis-leonurus

Eloise Zomia — Fri, 03 Jul 2026 11:38:29 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2015-11-01
|paper_name="Wild cannabis": A review of the traditional use and phytochemistry of Leonotis leonurus
|paper_kind=Journal article
|year=2015
|authors=Baudry N. Nsuala, Gill Enslin, Alvaro Viljoen
|venue=Journal of Ethnopharmacology
|doi=10.1016/j.jep.2015.08.013
|source=https://doi.org/10.1016/j.jep.2015.08.013
|country=South Africa
|summary=A review of the traditional use and phytochemistry of Leonotis leonurus ("wild dagga"), establishing that it is not cannabis and keeping the vernacular term distinct from true dagga.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2015-11-01]]
[[Has record created::2026-07-03]]
[[Has research title::"Wild cannabis": A review of the traditional use and phytochemistry of Leonotis leonurus]]
[[Has research type::Journal article]]
[[Has research authors::Baudry N. Nsuala, Gill Enslin, Alvaro Viljoen]]
[[Has research venue::Journal of Ethnopharmacology]]
[[Has research year::2015]]
[[Has DOI::10.1016/j.jep.2015.08.013]]
[[Has source URL::https://doi.org/10.1016/j.jep.2015.08.013]]
[[Has research summary::A review of the traditional use and phytochemistry of Leonotis leonurus ("wild dagga"), establishing that it is not cannabis and keeping the vernacular term distinct from true dagga.]]
[[Has country::South Africa]]
</div>

Research:2014-08-01/Journal article/psychoactive-plants-a-neglected-area-of-ethnobotanical-research-in-southern-africa-review

Eloise Zomia — Fri, 03 Jul 2026 11:38:28 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2014-08-01
|paper_name=Psychoactive Plants: A Neglected Area of Ethnobotanical Research in Southern Africa (Review)
|paper_kind=Journal article
|year=2014
|authors=Jean-Francois Sobiecki
|venue=Studies on Ethno-Medicine
|doi=10.1080/09735070.2014.11917631
|source=https://doi.org/10.1080/09735070.2014.11917631
|country=South Africa
|summary=A review arguing that psychoactive plants are a neglected area of ethnobotanical research in southern Africa.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2014-08-01]]
[[Has record created::2026-07-03]]
[[Has research title::Psychoactive Plants: A Neglected Area of Ethnobotanical Research in Southern Africa (Review)]]
[[Has research type::Journal article]]
[[Has research authors::Jean-Francois Sobiecki]]
[[Has research venue::Studies on Ethno-Medicine]]
[[Has research year::2014]]
[[Has DOI::10.1080/09735070.2014.11917631]]
[[Has source URL::https://doi.org/10.1080/09735070.2014.11917631]]
[[Has research summary::A review arguing that psychoactive plants are a neglected area of ethnobotanical research in southern Africa.]]
[[Has country::South Africa]]
</div>

Research:2002-01-01/Journal article/a-preliminary-inventory-of-plants-used-for-psychoactive-purposes-in-southern-african-healing-traditions

Eloise Zomia — Fri, 03 Jul 2026 11:38:27 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2002-01-01
|paper_name=A preliminary inventory of plants used for psychoactive purposes in southern African healing traditions
|paper_kind=Journal article
|year=2002
|authors=J.F. Sobiecki
|venue=Transactions of the Royal Society of South Africa
|doi=10.1080/00359190209520523
|source=https://doi.org/10.1080/00359190209520523
|country=South Africa
|summary=A preliminary inventory of plants used for psychoactive purposes in southern African healing traditions, part of the regional under-researched framing.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2002-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::A preliminary inventory of plants used for psychoactive purposes in southern African healing traditions]]
[[Has research type::Journal article]]
[[Has research authors::J.F. Sobiecki]]
[[Has research venue::Transactions of the Royal Society of South Africa]]
[[Has research year::2002]]
[[Has DOI::10.1080/00359190209520523]]
[[Has source URL::https://doi.org/10.1080/00359190209520523]]
[[Has research summary::A preliminary inventory of plants used for psychoactive purposes in southern African healing traditions, part of the regional under-researched framing.]]
[[Has country::South Africa]]
</div>

Research:2019-05-01/Journal article/a-review-of-the-ethnobotany-of-the-basotho-of-lesotho-and-the-free-state-province-of-south-africa-south-sotho

Eloise Zomia — Fri, 03 Jul 2026 11:38:26 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2019-05-01
|paper_name=A review of the ethnobotany of the Basotho of Lesotho and the Free State Province of South Africa (South Sotho)
|paper_kind=Journal article
|year=2019
|authors=A. Moteetee, R.O. Moffett, L. Seleteng-Kose
|venue=South African Journal of Botany
|doi=10.1016/j.sajb.2017.12.012
|source=https://doi.org/10.1016/j.sajb.2017.12.012
|country=South Africa
|summary=A review of the ethnobotany of the Basotho of Lesotho and the Free State Province of South Africa. The specific cannabis use-text is pending extraction, so confirm before quoting.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2019-05-01]]
[[Has record created::2026-07-03]]
[[Has research title::A review of the ethnobotany of the Basotho of Lesotho and the Free State Province of South Africa (South Sotho)]]
[[Has research type::Journal article]]
[[Has research authors::A. Moteetee, R.O. Moffett, L. Seleteng-Kose]]
[[Has research venue::South African Journal of Botany]]
[[Has research year::2019]]
[[Has DOI::10.1016/j.sajb.2017.12.012]]
[[Has source URL::https://doi.org/10.1016/j.sajb.2017.12.012]]
[[Has research summary::A review of the ethnobotany of the Basotho of Lesotho and the Free State Province of South Africa. The specific cannabis use-text is pending extraction, so confirm before quoting.]]
[[Has country::South Africa]]
</div>

Research:2011-12-13/Journal article/the-medical-ethnobotany-of-lesotho-a-review

Eloise Zomia — Fri, 03 Jul 2026 11:38:25 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2011-12-13
|paper_name=The medical ethnobotany of Lesotho: a review
|paper_kind=Journal article
|year=2011
|authors=A. Moteetee, B.-E. Van Wyk
|venue=Bothalia
|doi=10.4102/abc.v41i1.52
|source=https://doi.org/10.4102/abc.v41i1.52
|country=Lesotho
|summary=A review of the medical ethnobotany of Lesotho recording Sesotho matekoane (Cannabis sativa) and its uses. Cite as Bothalia 41(1):209–228 (2011), not the widely-copied 43(2), 2013.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2011-12-13]]
[[Has record created::2026-07-03]]
[[Has research title::The medical ethnobotany of Lesotho: a review]]
[[Has research type::Journal article]]
[[Has research authors::A. Moteetee, B.-E. Van Wyk]]
[[Has research venue::Bothalia]]
[[Has research year::2011]]
[[Has DOI::10.4102/abc.v41i1.52]]
[[Has source URL::https://doi.org/10.4102/abc.v41i1.52]]
[[Has research summary::A review of the medical ethnobotany of Lesotho recording Sesotho matekoane (Cannabis sativa) and its uses. Cite as Bothalia 41(1):209–228 (2011), not the widely-copied 43(2), 2013.]]
[[Has country::Lesotho]]
</div>

Research:2025-07-14/Journal article/cannabis-sativa-in-south-africa-history-legislation-production-and-pharmacological-aspects

Eloise Zomia — Fri, 03 Jul 2026 11:38:24 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2025-07-14
|paper_name=Cannabis sativa in South Africa: history, legislation, production, and pharmacological aspects
|paper_kind=Journal article
|year=2025
|authors=Michaela Mouton, Minja Gerber, Robert Verpoorte, Frank van der Kooy
|venue=Phytochemistry Reviews
|doi=10.1007/s11101-025-10157-y
|source=https://doi.org/10.1007/s11101-025-10157-y
|country=South Africa
|summary=A review of Cannabis sativa in South Africa covering history, legislation, production and pharmacological aspects, synthesising the national picture.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2025-07-14]]
[[Has record created::2026-07-03]]
[[Has research title::Cannabis sativa in South Africa: history, legislation, production, and pharmacological aspects]]
[[Has research type::Journal article]]
[[Has research authors::Michaela Mouton, Minja Gerber, Robert Verpoorte, Frank van der Kooy]]
[[Has research venue::Phytochemistry Reviews]]
[[Has research year::2025]]
[[Has DOI::10.1007/s11101-025-10157-y]]
[[Has source URL::https://doi.org/10.1007/s11101-025-10157-y]]
[[Has research summary::A review of Cannabis sativa in South Africa covering history, legislation, production and pharmacological aspects, synthesising the national picture.]]
[[Has country::South Africa]]
</div>

Research:2021-05-01/Journal article/an-assessment-of-the-potency-related-to-cannabis-based-products-in-the-south-african-market

Eloise Zomia — Fri, 03 Jul 2026 11:38:23 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2021-05-01
|paper_name=An assessment of the potency related to Cannabis-based products in the South African market
|paper_kind=Journal article
|year=2021
|authors=Hendrik Jacobus Viviers, Anél Petzer, Richard Gordon
|venue=Forensic Science International
|doi=10.1016/j.forsciint.2021.110754
|source=https://doi.org/10.1016/j.forsciint.2021.110754
|country=South Africa
|summary=Assesses potency across about 840 Cannabis-based product samples from the South African market. Reports market potency rather than landrace characterisation.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2021-05-01]]
[[Has record created::2026-07-03]]
[[Has research title::An assessment of the potency related to Cannabis-based products in the South African market]]
[[Has research type::Journal article]]
[[Has research authors::Hendrik Jacobus Viviers, Anél Petzer, Richard Gordon]]
[[Has research venue::Forensic Science International]]
[[Has research year::2021]]
[[Has DOI::10.1016/j.forsciint.2021.110754]]
[[Has source URL::https://doi.org/10.1016/j.forsciint.2021.110754]]
[[Has research summary::Assesses potency across about 840 Cannabis-based product samples from the South African market. Reports market potency rather than landrace characterisation.]]
[[Has country::South Africa]]
</div>

Research:2025-11-26/Journal article/effect-of-propagation-techniques-on-growth-development-oil-yield-and-quality-of-medicinal-cannabis-cannabis

Eloise Zomia — Fri, 03 Jul 2026 11:38:22 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2025-11-26
|paper_name=Effect of Propagation Techniques on Growth, Development, Oil Yield, and Quality of Medicinal Cannabis (Cannabis sativa) Found in Lusikisiki, Eastern Cape, South Africa
|paper_kind=Journal article
|year=2025
|authors=Azile Dumani, Tembakazi Theodora Silwana, Ifeanyi Moses Egbichi, Adebola Omowunmi Oyedeji, Babalwa Mpambani, Hlabana Alfred Seepe
|venue=Horticulturae
|doi=10.3390/horticulturae11121428
|source=https://doi.org/10.3390/horticulturae11121428
|country=South Africa
|summary=Tests propagation techniques and their effect on growth, oil yield and quality of the Lusikisiki medicinal cannabis material, extending the Dumani Eastern Cape survey into agronomy.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2025-11-26]]
[[Has record created::2026-07-03]]
[[Has research title::Effect of Propagation Techniques on Growth, Development, Oil Yield, and Quality of Medicinal Cannabis (Cannabis sativa) Found in Lusikisiki, Eastern Cape, South Africa]]
[[Has research type::Journal article]]
[[Has research authors::Azile Dumani, Tembakazi Theodora Silwana, Ifeanyi Moses Egbichi, Adebola Omowunmi Oyedeji, Babalwa Mpambani, Hlabana Alfred Seepe]]
[[Has research venue::Horticulturae]]
[[Has research year::2025]]
[[Has DOI::10.3390/horticulturae11121428]]
[[Has source URL::https://doi.org/10.3390/horticulturae11121428]]
[[Has research summary::Tests propagation techniques and their effect on growth, oil yield and quality of the Lusikisiki medicinal cannabis material, extending the Dumani Eastern Cape survey into agronomy.]]
[[Has country::South Africa]]
</div>

Research:2024-08-31/Journal article/identification-of-medicinal-cannabis-landraces-found-in-lusikisiki-eastern-cape-province-south-africa

Eloise Zomia — Fri, 03 Jul 2026 11:38:21 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2024-08-31
|paper_name=Identification of Medicinal Cannabis landraces found in Lusikisiki, Eastern Cape Province, South Africa
|paper_kind=Journal article
|year=2024
|authors=Azile Dumani, Tembakazi Theodora Silwana, Babalwa Mpambani, Adebola Omowunmi Oyedeji, Ifeanyi Moses Egbichi, Hlabana Alfred Seepe
|venue=Journal of People, Plants, and Environment
|doi=10.11628/ksppe.2024.27.4.259
|source=https://doi.org/10.11628/ksppe.2024.27.4.259
|country=South Africa
|summary=Identifies eight vouchered Cannabis sativa specimens collected around Lusikisiki in the Eastern Cape by morphology only, with no chemotype or genetic work. The first vouchered landrace survey of the Mpondoland heartland.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2024-08-31]]
[[Has record created::2026-07-03]]
[[Has research title::Identification of Medicinal Cannabis landraces found in Lusikisiki, Eastern Cape Province, South Africa]]
[[Has research type::Journal article]]
[[Has research authors::Azile Dumani, Tembakazi Theodora Silwana, Babalwa Mpambani, Adebola Omowunmi Oyedeji, Ifeanyi Moses Egbichi, Hlabana Alfred Seepe]]
[[Has research venue::Journal of People, Plants, and Environment]]
[[Has research year::2024]]
[[Has DOI::10.11628/ksppe.2024.27.4.259]]
[[Has source URL::https://doi.org/10.11628/ksppe.2024.27.4.259]]
[[Has research summary::Identifies eight vouchered Cannabis sativa specimens collected around Lusikisiki in the Eastern Cape by morphology only, with no chemotype or genetic work. The first vouchered landrace survey of the Mpondoland heartland.]]
[[Has country::South Africa]]
</div>

Research:2024-09-26/Journal article/finally-freed-cannabis-in-south-africa-a-review-contextualised-within-global-history-diversity-and-chemical

Eloise Zomia — Fri, 03 Jul 2026 11:38:20 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2024-09-26
|paper_name=Finally Freed—Cannabis in South Africa: A Review Contextualised within Global History, Diversity, and Chemical Profiles
|paper_kind=Journal article
|year=2024
|authors=Valencia V. Ndlangamandla, Adeola Salawu-Rotimi, Vuyiswa S. Bushula-Njah, Nompilo L. Hlongwane, Gugu F. Sibandze, Fikisiwe C. Gebashe, Nokuthula P. Mchunu
|venue=Plants
|doi=10.3390/plants13192695
|source=https://doi.org/10.3390/plants13192695
|country=South Africa
|summary=A review contextualising cannabis in South Africa within global history, diversity and chemical profiles. States that no study has characterised southern-African cannabis landraces and that the NCBI genome assemblies include none of African origin, documenting the characterisation gap.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2024-09-26]]
[[Has record created::2026-07-03]]
[[Has research title::Finally Freed—Cannabis in South Africa: A Review Contextualised within Global History, Diversity, and Chemical Profiles]]
[[Has research type::Journal article]]
[[Has research authors::Valencia V. Ndlangamandla, Adeola Salawu-Rotimi, Vuyiswa S. Bushula-Njah, Nompilo L. Hlongwane, Gugu F. Sibandze, Fikisiwe C. Gebashe, Nokuthula P. Mchunu]]
[[Has research venue::Plants]]
[[Has research year::2024]]
[[Has DOI::10.3390/plants13192695]]
[[Has source URL::https://doi.org/10.3390/plants13192695]]
[[Has research summary::A review contextualising cannabis in South Africa within global history, diversity and chemical profiles. States that no study has characterised southern-African cannabis landraces and that the NCBI genome assemblies include none of African origin, documenting the characterisation gap.]]
[[Has country::South Africa]]
</div>

Research:2003-12-01/Journal article/cannabis-sativa-and-rural-livelihoods-in-south-africa-politics-of-cultivation-trade-and-value-in-pondoland

Eloise Zomia — Fri, 03 Jul 2026 11:38:19 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2003-12-01
|paper_name=Cannabis sativa and rural livelihoods in South Africa: politics of cultivation, trade and value in Pondoland
|paper_kind=Journal article
|year=2003
|authors=Thembela Kepe
|venue=Development Southern Africa
|doi=10.1080/0376835032000149252
|source=https://doi.org/10.1080/0376835032000149252
|country=South Africa
|summary=A Pondoland village case study (fieldwork 1996–2000) reporting that eastern Pondoland has produced the most cannabis for decades and that broken terrain impedes policing. Records a grower share of about R16–40/kg against city dealers' roughly R1,000/kg, and argues that decriminalisation could lower prices and harm rural growers.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2003-12-01]]
[[Has record created::2026-07-03]]
[[Has research title::Cannabis sativa and rural livelihoods in South Africa: politics of cultivation, trade and value in Pondoland]]
[[Has research type::Journal article]]
[[Has research authors::Thembela Kepe]]
[[Has research venue::Development Southern Africa]]
[[Has research year::2003]]
[[Has DOI::10.1080/0376835032000149252]]
[[Has source URL::https://doi.org/10.1080/0376835032000149252]]
[[Has research summary::A Pondoland village case study (fieldwork 1996–2000) reporting that eastern Pondoland has produced the most cannabis for decades and that broken terrain impedes policing. Records a grower share of about R16–40/kg against city dealers' roughly R1,000/kg, and argues that decriminalisation could lower prices and harm rural growers.]]
[[Has country::South Africa]]
</div>

Research:2024-01-01/Book chapter/a-focus-on-cannabis-as-an-indigenous-entrepreneurial-activity-in-south-africa-by-the-indigenous-khoisan

Eloise Zomia — Fri, 03 Jul 2026 11:38:18 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2024-01-01
|paper_name=A Focus on Cannabis as an Indigenous Entrepreneurial Activity in South Africa by the Indigenous Khoisan and Bantu
|paper_kind=Book chapter
|year=2024
|authors=Pfano Mashau, Tshililo Farisani, Adenike Bello
|venue=Indigenous Entrepreneurship in Sub-Saharan Africa (Palgrave Macmillan)
|doi=10.1007/978-3-031-64924-0_10
|source=https://doi.org/10.1007/978-3-031-64924-0_10
|country=South Africa
|summary=Frames cannabis as an indigenous entrepreneurial activity of the Khoisan and Bantu, arguing for its place in South African indigenous enterprise. A book chapter; cite for the argument rather than for figures.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2024-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::A Focus on Cannabis as an Indigenous Entrepreneurial Activity in South Africa by the Indigenous Khoisan and Bantu]]
[[Has research type::Book chapter]]
[[Has research authors::Pfano Mashau, Tshililo Farisani, Adenike Bello]]
[[Has research venue::Indigenous Entrepreneurship in Sub-Saharan Africa (Palgrave Macmillan)]]
[[Has research year::2024]]
[[Has DOI::10.1007/978-3-031-64924-0_10]]
[[Has source URL::https://doi.org/10.1007/978-3-031-64924-0_10]]
[[Has research summary::Frames cannabis as an indigenous entrepreneurial activity of the Khoisan and Bantu, arguing for its place in South African indigenous enterprise. A book chapter; cite for the argument rather than for figures.]]
[[Has country::South Africa]]
</div>

Research:2019-01-01/Journal article/decriminalisation-of-cannabis-for-personal-use-in-south-africa

Eloise Zomia — Fri, 03 Jul 2026 11:38:17 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2019-01-01
|paper_name=Decriminalisation of cannabis for personal use in South Africa
|paper_kind=Journal article
|year=2019
|authors=Emma Charlene Lubaale, Simangele Daisy Mavundla
|venue=African Human Rights Law Journal
|doi=10.17159/1996-2096/2019/v19n2a13
|source=https://doi.org/10.17159/1996-2096/2019/v19n2a13
|country=South Africa
|summary=Analyses the decriminalisation of cannabis for personal use in South Africa, tracing the doctrinal shift from the 2002 religious-freedom claim to the 2018 privacy judgment.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2019-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::Decriminalisation of cannabis for personal use in South Africa]]
[[Has research type::Journal article]]
[[Has research authors::Emma Charlene Lubaale, Simangele Daisy Mavundla]]
[[Has research venue::African Human Rights Law Journal]]
[[Has research year::2019]]
[[Has DOI::10.17159/1996-2096/2019/v19n2a13]]
[[Has source URL::https://doi.org/10.17159/1996-2096/2019/v19n2a13]]
[[Has research summary::Analyses the decriminalisation of cannabis for personal use in South Africa, tracing the doctrinal shift from the 2002 religious-freedom claim to the 2018 privacy judgment.]]
[[Has country::South Africa]]
</div>

Research:2022-04-03/Journal article/south-africas-century-of-cannabis-politics-1922-2022

Eloise Zomia — Fri, 03 Jul 2026 11:38:16 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2022-04-03
|paper_name=South Africa's Century of Cannabis Politics, 1922–2022
|paper_kind=Journal article
|year=2022
|authors=Thembisa Waetjen
|venue=South African Historical Journal
|doi=10.1080/02582473.2022.2128274
|source=https://doi.org/10.1080/02582473.2022.2128274
|country=South Africa
|summary=Surveys a century of South African cannabis politics from the 1922 criminalisation to 2022, framing the arc from prohibition to the 2018 Prince privacy ruling.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2022-04-03]]
[[Has record created::2026-07-03]]
[[Has research title::South Africa's Century of Cannabis Politics, 1922–2022]]
[[Has research type::Journal article]]
[[Has research authors::Thembisa Waetjen]]
[[Has research venue::South African Historical Journal]]
[[Has research year::2022]]
[[Has DOI::10.1080/02582473.2022.2128274]]
[[Has source URL::https://doi.org/10.1080/02582473.2022.2128274]]
[[Has research summary::Surveys a century of South African cannabis politics from the 1922 criminalisation to 2022, framing the arc from prohibition to the 2018 Prince privacy ruling.]]
[[Has country::South Africa]]
</div>

Research:2020-01-01/Journal article/cannabis-policing-in-mid-twentieth-century-south-africa

Eloise Zomia — Fri, 03 Jul 2026 11:38:15 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2020-01-01
|paper_name=Cannabis policing in mid-twentieth century South Africa
|paper_kind=Journal article
|year=2020
|authors=Phumla Innocent Nkosi, Richard Devey, Thembisa Waetjen
|venue=Historia
|doi=10.17159/2309-8392/2020/v65n1a4
|source=https://doi.org/10.17159/2309-8392/2020/v65n1a4
|country=South Africa
|summary=Reconstructs cannabis policing in mid-twentieth-century South Africa, giving an arrest series rising from 5,762 in 1932 to 23,289 in 1955 and naming cultivation nodes at Nelspruit, Vryheid, Paarl and Weenen.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2020-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::Cannabis policing in mid-twentieth century South Africa]]
[[Has research type::Journal article]]
[[Has research authors::Phumla Innocent Nkosi, Richard Devey, Thembisa Waetjen]]
[[Has research venue::Historia]]
[[Has research year::2020]]
[[Has DOI::10.17159/2309-8392/2020/v65n1a4]]
[[Has source URL::https://doi.org/10.17159/2309-8392/2020/v65n1a4]]
[[Has research summary::Reconstructs cannabis policing in mid-twentieth-century South Africa, giving an arrest series rising from 5,762 in 1932 to 23,289 in 1955 and naming cultivation nodes at Nelspruit, Vryheid, Paarl and Weenen.]]
[[Has country::South Africa]]
</div>

Research:2011-01-01/Journal article/the-league-of-nations-and-the-debate-over-cannabis-prohibition

Eloise Zomia — Fri, 03 Jul 2026 11:38:14 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2011-01-01
|paper_name=The League of Nations and the Debate over Cannabis Prohibition
|paper_kind=Journal article
|year=2011
|authors=Liat Kozma
|venue=History Compass
|doi=10.1111/j.1478-0542.2010.00740.x
|source=https://doi.org/10.1111/j.1478-0542.2010.00740.x
|summary=Reviews the League of Nations debate that drew cannabis into the international control framework, the process behind the 1925 Geneva scheduling. Global in scope rather than South-Africa-specific.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2011-01-01]]
[[Has record created::2026-07-03]]
[[Has research title::The League of Nations and the Debate over Cannabis Prohibition]]
[[Has research type::Journal article]]
[[Has research authors::Liat Kozma]]
[[Has research venue::History Compass]]
[[Has research year::2011]]
[[Has DOI::10.1111/j.1478-0542.2010.00740.x]]
[[Has source URL::https://doi.org/10.1111/j.1478-0542.2010.00740.x]]
[[Has research summary::Reviews the League of Nations debate that drew cannabis into the international control framework, the process behind the 1925 Geneva scheduling. Global in scope rather than South-Africa-specific.]]
</div>

Research:2023-11-02/Journal article/settling-dagga-shifting-frontiers-of-cannabis-knowledge-and-governance-in-south-africa

Eloise Zomia — Fri, 03 Jul 2026 11:38:13 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2023-11-02
|paper_name=Settling 'Dagga'? Shifting Frontiers of Cannabis Knowledge and Governance in South Africa
|paper_kind=Journal article
|year=2023
|authors=Thembisa Waetjen, Perside Ndandu
|venue=Journal of Southern African Studies
|doi=10.1080/03057070.2023.2351316
|source=https://doi.org/10.1080/03057070.2023.2351316
|country=South Africa
|summary=Examines the shifting frontiers of cannabis knowledge and governance in South Africa, extending Waetjen's account of how dagga was governed from the colonial period onward.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2023-11-02]]
[[Has record created::2026-07-03]]
[[Has research title::Settling 'Dagga'? Shifting Frontiers of Cannabis Knowledge and Governance in South Africa]]
[[Has research type::Journal article]]
[[Has research authors::Thembisa Waetjen, Perside Ndandu]]
[[Has research venue::Journal of Southern African Studies]]
[[Has research year::2023]]
[[Has DOI::10.1080/03057070.2023.2351316]]
[[Has source URL::https://doi.org/10.1080/03057070.2023.2351316]]
[[Has research summary::Examines the shifting frontiers of cannabis knowledge and governance in South Africa, extending Waetjen's account of how dagga was governed from the colonial period onward.]]
[[Has country::South Africa]]
</div>

Research:2021-08-03/Book chapter/dagga-how-south-africa-made-a-dangerous-drug-1902-1928

Eloise Zomia — Fri, 03 Jul 2026 11:38:12 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2021-08-03
|paper_name=Dagga: How South Africa Made a Dangerous Drug, 1902–1928
|paper_kind=Book chapter
|year=2021
|authors=Thembisa Waetjen
|venue=Cannabis: Global Histories (MIT Press)
|doi=10.7551/mitpress/12102.003.0008
|source=https://doi.org/10.7551/mitpress/12102.003.0008
|country=South Africa
|summary=Argues how South Africa constructed dagga as a dangerous drug between 1902 and 1928, covering the administrative steps toward national prohibition. A chapter in the edited volume catalogued on-wiki as [[Cannabis: Global Histories (2021)]].
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2021-08-03]]
[[Has record created::2026-07-03]]
[[Has research title::Dagga: How South Africa Made a Dangerous Drug, 1902–1928]]
[[Has research type::Book chapter]]
[[Has research authors::Thembisa Waetjen]]
[[Has research venue::Cannabis: Global Histories (MIT Press)]]
[[Has research year::2021]]
[[Has DOI::10.7551/mitpress/12102.003.0008]]
[[Has source URL::https://doi.org/10.7551/mitpress/12102.003.0008]]
[[Has research summary::Argues how South Africa constructed dagga as a dangerous drug between 1902 and 1928, covering the administrative steps toward national prohibition. A chapter in the edited volume catalogued on-wiki as [[Cannabis: Global Histories (2021)]].]]
[[Has country::South Africa]]
</div>

Research:2019-10-02/Journal article/dagga-and-prohibition-markets-animals-and-the-imperial-contexts-of-knowledge-1893-1925

Eloise Zomia — Fri, 03 Jul 2026 11:36:50 GMT

Eloise Zomia: Create ResearchItem record (South Africa batch 2026-07-03; citation-verified via Crossref)

{{ResearchItem
|date=2019-10-02
|paper_name=Dagga and Prohibition: Markets, Animals, and the Imperial Contexts of Knowledge, 1893–1925
|paper_kind=Journal article
|year=2019
|authors=Utathya Chattopadhyaya
|venue=South African Historical Journal
|doi=10.1080/02582473.2019.1641738
|source=https://doi.org/10.1080/02582473.2019.1641738
|country=South Africa
|summary=Traces how markets, the animal trade and imperial knowledge networks shaped the regulation of dagga between 1893 and 1925, situating South African prohibition within the emerging international-control regime.
|record_created=2026-07-03
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2019-10-02]]
[[Has record created::2026-07-03]]
[[Has research title::Dagga and Prohibition: Markets, Animals, and the Imperial Contexts of Knowledge, 1893–1925]]
[[Has research type::Journal article]]
[[Has research authors::Utathya Chattopadhyaya]]
[[Has research venue::South African Historical Journal]]
[[Has research year::2019]]
[[Has DOI::10.1080/02582473.2019.1641738]]
[[Has source URL::https://doi.org/10.1080/02582473.2019.1641738]]
[[Has research summary::Traces how markets, the animal trade and imperial knowledge networks shaped the regulation of dagga between 1893 and 1925, situating South African prohibition within the emerging international-control regime.]]
[[Has country::South Africa]]
</div>

Cannabis in South Africa

Eloise Zomia — Fri, 03 Jul 2026 09:09:41 GMT

Eloise Zomia: Fix bhat2013 citation: publisher DOI 10.5897/JMPR12.973 does not resolve; cite via Academic Journals URL (ref-audit 2026-07-03)

{{Cannabis in South Africa series}}

'''Cannabis in South Africa''' has one of the oldest and most fully documented records of any cannabis culture on the African continent. The plant is known throughout the country as '''dagga''', a term Afrikaans adopted from a [[Khoikhoi|Khoekhoe]] word; the anthropologist Brian du Toit traced it to Khoekhoe ''daXa-b'' ("tobacco"), the compound ''amaXa-b'' carrying the sense "green tobacco".<ref name="duToit1980">{{cite book |last=du Toit |first=B.M. |title=Cannabis in Africa |location=Rotterdam |publisher=A.A. Balkema |year=1980 |isbn=90-6191-030-7}}</ref>{{verify source}} Cannabis was smoked in southern Africa well before European settlement, and the record runs from [[Khoisan]] and [[Bantu peoples|Bantu-speaking]] use through a century of prohibition, in which South Africa helped write cannabis into the international drug-control system, to the constitutional decriminalisation of private adult use in 2018.<ref name="duToit1975">{{cite book |last=du Toit |first=B.M. |chapter=Dagga: the history and ethnographic setting of Cannabis sativa in southern Africa |editor-last=Rubin |editor-first=V. |title=Cannabis and Culture |location=The Hague |publisher=Mouton |year=1975 |pages=81–116 |doi=10.1515/9783110812060.81}}</ref><ref name="chattopadhyaya2019">{{cite journal |last=Chattopadhyaya |first=U. |title=Dagga and prohibition: markets, animals, and the imperial contexts of knowledge, 1893–1925 |journal=South African Historical Journal |year=2019 |volume=71 |issue=4 |pages=587–613 |doi=10.1080/02582473.2019.1641738}}</ref><ref name="prince2018">{{cite web |title=Minister of Justice and Constitutional Development and Others v Prince; National Director of Public Prosecutions and Others v Rubin; National Director of Public Prosecutions and Others v Acton and Others (CCT108/17) [2018] ZACC 30 |publisher=Constitutional Court of South Africa |date=18 September 2018 |url=https://www.saflii.org/za/cases/ZACC/2018/30.html |via=SAFLII}}</ref>

The traditional crop is concentrated in the summer-rainfall east of the country, above all in [[Mpondoland]] on the [[Wild Coast]] of the former [[Transkei]], in the [[Eastern Cape]], with a second belt in [[KwaZulu-Natal]]. The growing country continues across the international boundaries into the highlands of [[Lesotho]] and the mountainous north of [[Eswatini]], with which the South African crop forms a single regional production complex.<ref name="kepe2003">{{cite journal |last=Kepe |first=T. |title=Cannabis sativa and rural livelihoods in South Africa: politics of cultivation, trade and value in Pondoland |journal=Development Southern Africa |year=2003 |volume=20 |issue=5 |pages=605–615 |doi=10.1080/0376835032000149252}}</ref><ref name="gastrow2003">{{cite report |last=Gastrow |first=P. |title=Mind-blowing: the cannabis trade in southern Africa |publisher=Institute for Security Studies |location=Cape Town |year=2003}}</ref>

Despite this long record the country's cannabis landraces remain scientifically uncharacterised. A 2024 review found no study of the diversity or chemistry of southern African cannabis landraces and no African cannabis genome assemblies in international databases.<ref name="ndlangamandla2024">{{cite journal |last1=Ndlangamandla |first1=V.V. |last2=Salawu-Rotimi |first2=A. |last3=Bushula-Njah |first3=V.S. |last4=Hlongwane |first4=N. |last5=Sibandze |first5=G.F. |last6=Gebashe |first6=F. |last7=Mchunu |first7=N.P. |title=Finally freed—cannabis in South Africa: a review contextualised within global history, diversity, and chemical profiles |journal=Plants |year=2024 |volume=13 |issue=19 |pages=2695 |doi=10.3390/plants13192695}}</ref> Since decriminalisation the low-potency traditional crop has been displaced on price by high-potency commercial genetics, and the smallholders who grow it have been excluded from the licensed medical market that the 2018 judgment opened.<ref name="nowicki2024">{{cite news |last=Nowicki |first=L. |title=Mpondoland dagga growers left out to dry |work=GroundUp |date=29 July 2024 |url=https://groundup.org.za/article/mpondoland-dagga-growers-left-out-to-dry/}}</ref><ref name="ecsecc2020">{{cite report |last=Lewis |first=M. |title=Cannabis in the Eastern Cape: a policy discussion document |publisher=Eastern Cape Socio Economic Consultative Council |year=2020 |isbn=978-1-77593-076-1}}</ref>

== History ==
{{Main|History of cannabis in South Africa}}

=== Precolonial and early-colonial documentation ===

Cannabis reached southern Africa as part of the wider dispersal of the plant through the continent. The geographer Chris Duvall holds that it came to eastern Africa from southern Asia by maritime trade, inferred from about 1000 CE, and spread within the continent mostly after 1500.<ref name="duvallORE2017">{{cite encyclopedia |last=Duvall |first=C.S. |title=Cannabis and tobacco in precolonial and colonial Africa |encyclopedia=Oxford Research Encyclopedia of African History |year=2017 |doi=10.1093/acrefore/9780190277734.013.44}}</ref><ref name="duvall2019">{{cite journal |last=Duvall |first=C.S. |title=A brief agricultural history of cannabis in Africa, from prehistory to canna-colony |journal=EchoGéo |year=2019 |issue=48 |doi=10.4000/echogeo.17599}}</ref> Archaeological work places the smoking habit in Africa before the arrival of tobacco: fourteenth-century water-pipe bowls from Ethiopia have been found to retain cannabis residue, an East African comparandum rather than direct evidence for the south.<ref name="vanderMerwe2005">{{cite journal |last=van der Merwe |first=N.J. |title=Antiquity of the smoking habit in Africa |journal=Transactions of the Royal Society of South Africa |year=2005 |volume=60 |issue=2 |pages=147–150 |doi=10.1080/00359190509520494}}</ref> An intoxicant the Khoikhoi called ''dagga'' was an article of the precolonial exchange economy, sought through trading expeditions to cultivators in the east. The historian David Gordon argues, however, that the narcotic these powerful eastern [[Khoikhoi]], the Inqua and Attaqua, actually cultivated and traded in the seventeenth century was probably not cannabis but ''canna'', a Karoo root chewed after fermentation and botanically distinct from the cannabis plant, their arid country being ill-suited to cannabis; in his account ''dagga'' came to denote cannabis in Cape trade only during the eighteenth century.<ref name="gordon1996">{{cite journal |last=Gordon |first=D. |title=From rituals of rapture to dependence: the political economy of Khoikhoi narcotic consumption, c.1487–1870 |journal=South African Historical Journal |year=1996 |volume=35 |issue=1 |pages=62–88 |doi=10.1080/02582479608671247}}</ref>

Systematic documentary evidence begins with European travellers at and beyond the Cape. The journal kept under Jan van Riebeeck records Khoikhoi esteem for ''daccha'' in 1658, the earliest written use of the term, though its referent is disputed: Gordon reads this ''dacha'' as the ''canna'' root, while others have taken it for cannabis or for the unrelated plant ''Leonotis leonurus'' ("wild dagga"), so the earliest mentions attest the word rather than, unambiguously, the cannabis plant.<ref name="gordon1996"/><ref name="duToit1975"/><ref name="nsuala2015">{{cite journal |last1=Nsuala |first1=B.N. |last2=Enslin |first2=G. |last3=Viljoen |first3=A. |title="Wild cannabis": a review of the traditional use and phytochemistry of Leonotis leonurus |journal=Journal of Ethnopharmacology |year=2015 |volume=174 |pages=520–539 |doi=10.1016/j.jep.2015.08.013}}</ref> The naturalist Peter Kolb, resident at the Cape between 1705 and 1713, gave the first detailed account, describing ''dacha'' as a herb the Khoikhoi prized above all others and stating that they had used it before tobacco was known to them, which places the practice before the Dutch settlement of 1652.<ref name="kolb-1745">{{cite book |last=Kolb |first=P. |title=Beschreibung des Vorgebürges der guten Hoffnung und derer darauf wohnenden Hottentotten |location=Frankfurt und Leipzig |publisher=Peter Conrad Monath |year=1745 |pages=138–140 |url=https://archive.org/details/b30501428 |via=archive.org}}</ref>

=== Prohibition and the international-control role ===

Formal restriction began not with the indigenous crop but with the ''[[ganja]]'' brought by Indian indentured labourers to [[KwaZulu-Natal|Natal]] from 1860. Section 70 of Natal's Law 2 of 1870 controlled its use, and over the following decades administrators, employers and medical officers increasingly linked cannabis to alleged insanity and to fears of disorder among Black and Indian workers, a framing that later scholarship reads as much as evidence of colonial anxiety as of the plant.<ref name="paterson2009">{{cite thesis |last=Paterson |first=C. |title=Prohibition and resistance: a socio-political exploration of the changing dynamics of the southern African cannabis trade, c. 1850 – the present |degree=MA |publisher=Rhodes University |year=2009}}</ref><ref name="nkosi2020">{{cite journal |last1=Nkosi |first1=P.I. |last2=Devey |first2=R. |last3=Waetjen |first3=T. |title=Cannabis policing in mid-twentieth century South Africa |journal=Historia |year=2020 |volume=65 |issue=1 |doi=10.17159/2309-8392/2020/v65n1a4}}</ref>

National prohibition followed in stages. A customs measure of 1922 controlled dagga as a habit-forming drug, and the Medical, Dental and Pharmacy Act 13 of 1928 prohibited its unlicensed cultivation and supply.<ref name="nkosi2020"/> In parallel South Africa pressed for international control. In 1923 the government of Jan Smuts asked the [https://en.wikipedia.org/wiki/League_of_Nations League of Nations] to bring cannabis under the emerging drug-control regime, an intervention that fed into the plant's inclusion in the 1925 [https://en.wikipedia.org/wiki/International_Opium_Convention Geneva International Opium Convention] and gave the country a formative part in the global prohibition of cannabis.<ref name="chattopadhyaya2019"/><ref name="kozma2011">{{cite journal |last=Kozma |first=L. |title=The League of Nations and the debate over cannabis prohibition |journal=History Compass |year=2011 |volume=9 |issue=1 |pages=61–70 |doi=10.1111/j.1478-0542.2010.00740.x}}</ref><ref name="mills2003">{{cite book |last=Mills |first=J.H. |title=Cannabis Britannica: Empire, Trade, and Prohibition 1800–1928 |location=Oxford |publisher=Oxford University Press |year=2003 |chapter=The League of Nations and British legislation, 1912–1928 |pages=152–188 |doi=10.1093/oso/9780199249381.003.0007}}</ref>

Enforcement was racially structured, concentrated on urban possession by Black South Africans, and cannabis control operated as one instrument within the wider legal architecture of segregation and later of [https://en.wikipedia.org/wiki/Apartheid apartheid]. Recorded cannabis arrests rose from 5,762 in 1932 to 23,289 in 1955, and prohibition was tightened under the Abuse of Dependence-Producing Substances and Rehabilitation Centres Act 41 of 1971 and the Drugs and Drug Trafficking Act 140 of 1992.<ref name="nkosi2020"/><ref name="waetjen2021">{{cite book |last=Waetjen |first=T. |chapter=Dagga: how South Africa made a dangerous drug, 1902–1928 |editor1-last=Richert |editor1-first=L. |editor2-last=Mills |editor2-first=J.H. |title=Cannabis: Global Histories |location=Cambridge, MA |publisher=MIT Press |year=2021 |pages=83–107}}</ref><ref name="waetjen2022">{{cite journal |last=Waetjen |first=T. |title=South Africa's century of cannabis politics, 1922–2022 |journal=South African Historical Journal |year=2022 |volume=74 |issue=2 |doi=10.1080/02582473.2022.2128274}}</ref>

=== Enforcement and aerial eradication ===

From the 1980s the [https://en.wikipedia.org/wiki/South_African_Police_Service South African Police Service] eradicated rural crops from the air, spraying herbicide over the Transkei and the KwaZulu-Natal foothills from low-flying helicopters. According to reporting by the journalist Kimon de Greef, a civil-society campaign in the former Natal secured a ban on the herbicide paraquat in 1990, and the police thereafter sprayed glyphosate, marketed as "Kilo Max"; the programme was augmented in February 2004 by a helicopter and spraying equipment donated by the United States.<ref name="degreef2016">{{cite news |last=de Greef |first=K. |title=Cash crops poisoned in Pondoland |work=GroundUp |date=7 April 2016 |url=https://groundup.org.za/article/cash-crops-poisoned-pondoland/}}</ref><ref name="idpc2016">{{cite web |publisher=International Drug Policy Consortium |title=Cannabis: forced crop eradication in South Africa |date=19 January 2016 |url=https://idpc.net/publications/2016/01/cannabis-forced-crop-eradication-in-south-africa}}</ref> After the International Agency for Research on Cancer classified glyphosate as a probable carcinogen in 2015 the practice drew legal and civil-society challenge; no aerial spraying was conducted in 2016, and in 2018 the United Nations Committee on Economic, Social and Cultural Rights called on South Africa to end aerial fumigation in Mpondoland.<ref name="degreef2016"/><ref name="cescr2018">{{cite report |author=UN Committee on Economic, Social and Cultural Rights |title=Concluding observations on the initial report of South Africa (E/C.12/ZAF/CO/1) |publisher=United Nations |year=2018}}</ref>{{verify source}}

=== Decriminalisation ===

The prohibition era ended in 2018, when the [https://en.wikipedia.org/wiki/Constitutional_Court_of_South_Africa Constitutional Court], in ''Minister of Justice and Constitutional Development v Prince'', held that criminalising an adult's private use, possession or cultivation of cannabis for personal consumption unjustifiably limited the constitutional right to privacy. Purchase, dealing and public use were not decriminalised.<ref name="prince2018"/> Parliament passed the Cannabis for Private Purposes Act in 2024 to codify the judgment, although the Act was not yet in force in 2026. The legal detail is treated under [[#Trade, economy and law|Trade, economy and law]] below; the earlier and distinct 2002 religious-freedom challenge brought by the same litigant is treated under [[#Religious and cultural use|Religious and cultural use]].

== Cultivation and landraces ==
{{Main|Cannabis cultivation in South Africa}}

=== The Mpondoland heartland ===

The former Transkei districts of Mpondoland, on the Eastern Cape Wild Coast and in particular the country around [[Lusikisiki]], are the best-known cannabis-growing region in South Africa. Eastern Pondoland has produced the most cannabis for many decades, its broken countryside of gorges and ravines impeding police access to the plantations.<ref name="kepe2003"/> In the country's poorest province, where poor soils limit other cropping, cannabis is a central if unevenly distributed part of rural livelihoods; from fieldwork in a Pondoland village the anthropologist Thembela Kepe found that not all growers prosper and that they capture only a small share of the eventual price, receiving perhaps 16 to 40 rand per kilogram against city dealers' profits of around 1,000 rand.<ref name="kepe2003"/> Kepe argued that decriminalisation might not help them, since the illegality of the trade is part of what keeps prices high and an opened market could be captured by larger businesses, a warning the post-2018 experience bore out.<ref name="kepe2003"/><ref name="nowicki2024"/>

=== KwaZulu-Natal and the regional complex ===

Cultivation is also long established in the foothills of KwaZulu-Natal, around Msinga among other districts. The wider region forms a single production complex with neighbouring Lesotho and Eswatini. Lesotho is a major producer whose crop is trafficked largely through South Africa, and the mountainous north of Eswatini is a further source of cannabis reputed for its quality.<ref name="bloomer2019">{{cite journal |last=Bloomer |first=J. |title=Turning cannabis into cash: agrarian change and Lesotho's evolving experience |journal=EchoGéo |year=2019 |issue=48 |doi=10.4000/echogeo.17612}}</ref><ref name="bloomer2009">{{cite journal |last=Bloomer |first=J. |title=Using a political ecology framework to examine extra-legal livelihood strategies: a Lesotho-based case study of cultivation of and trade in cannabis |journal=Journal of Political Ecology |year=2009 |volume=16 |issue=1 |pages=49–69 |doi=10.2458/v16i1.21691}}</ref><ref name="gastrow2003"/>

=== Landraces and varieties ===

Traditional South African cannabis is often referred to by market names such as ''[[Durban Poison]]'' and ''[[Swazi Gold]]''. These are reputational trade terms rather than scientifically defined varieties, and the potency figures attached to them circulate in commercial seed material without a peer-reviewed basis.<ref name="ndlangamandla2024"/> The scientific record is thin. A 2024 morphological survey of eight landrace collections from Lusikisiki confirmed them as ''[[Cannabis sativa]]'' but did not quantify their cannabinoid content, and a companion study examined the agronomy of the same material.<ref name="dumani2024">{{cite journal |last1=Dumani |first1=A. |last2=Silwana |first2=T.T. |last3=Mpambani |first3=B. |last4=Oyedeji |first4=A.O. |title=Identification of medicinal Cannabis landraces found in Lusikisiki, Eastern Cape Province, South Africa |journal=Journal of People, Plants, and Environment |year=2024 |volume=27 |issue=4 |pages=259–267 |doi=10.11628/ksppe.2024.27.4.259}}</ref><ref name="dumani2025">{{cite journal |last1=Dumani |first1=A. |last2=Silwana |first2=T.T. |last3=Mpambani |first3=B. |last4=Oyedeji |first4=A.O. |title=Effect of propagation techniques on the growth of medicinal Cannabis landraces from Lusikisiki |journal=Horticulturae |year=2025 |volume=11 |issue=12 |pages=1428 |doi=10.3390/horticulturae11121428}}</ref> A 2024 review concluded that no study had examined the diversity or chemistry of southern African cannabis landraces, and that international genome databases contained no African cannabis assemblies at all.<ref name="ndlangamandla2024"/>

== Trade, economy and law ==
{{Main|Cannabis law in South Africa}}

South Africa has long been a significant producer of cannabis, though its standing has often been overstated. In 2005 the country seized an estimated 292 tonnes of cannabis herb, about 42 per cent of all African seizures and, in that year, the third-highest national total in the world; this figure is specific to 2005 and does not describe later years, when South Africa was routinely outranked within Africa, standing second on the continent in 2022 and sixth in 2023.<ref name="unodc2007africa">{{cite report |author=United Nations Office on Drugs and Crime |title=Cannabis in Africa: an overview |publisher=UNODC |year=2007}}</ref><ref name="unodcWDR2025">{{cite report |author=United Nations Office on Drugs and Crime |title=World Drug Report 2025, Statistical Annex |publisher=UNODC |year=2025}}</ref> Estimates of the area under cannabis generally fall between 1,000 and 2,000 hectares; a mid-1990s figure that implied South Africa was the world's largest producer was repudiated by the UNODC as a dry-plant-weight calculation error and should not be repeated.<ref name="unodc2002profile">{{cite report |author=United Nations Office on Drugs and Crime, Regional Office for Southern Africa |title=South Africa: country profile on drugs and crime |publisher=UNODC |year=2002}}</ref>

Private adult use, possession and cultivation of cannabis are lawful, following the 2018 ''Prince'' judgment.<ref name="prince2018"/> The Cannabis for Private Purposes Act 7 of 2024, assented to on 28 May 2024, was intended to codify the judgment; it removes cannabis from the schedules of the Drugs and Drug Trafficking Act and provides for the expungement of past convictions, but comes into force only on a date fixed by presidential proclamation, which had not been issued by 2026, so the operative legal position remained that set by the 2018 judgment.<ref name="cfppa2024">{{cite web |title=Cannabis for Private Purposes Act 7 of 2024 |publisher=Republic of South Africa |date=3 June 2024 |url=https://www.gov.za/documents/acts/cannabis-private-purposes-act-7-2024-english-sepedi-03-jun-2024}}</ref> Draft regulations published for comment in February 2026 proposed that an adult be allowed to possess up to 750 grams of cannabis, in a private or a public place, at any given time during a single day, and to cultivate up to five plants; the limits are framed per adult rather than per household.<ref name="cfppa2024draftregs">{{cite web |author=Department of Justice and Constitutional Development |title=Draft Cannabis Regulations, General Notice R.7067, Government Gazette No. 54061 |publisher=Republic of South Africa |date=2 February 2026 |url=https://www.justice.gov.za/legislation/notices/2026/20260202-gg54061rg7067-Draft%20Cannabis%20Regulations.pdf}}</ref> There is no legal commercial recreational market. Medical cannabis is regulated separately by the [https://en.wikipedia.org/wiki/South_African_Health_Products_Regulatory_Authority South African Health Products Regulatory Authority] (SAHPRA) under the Medicines and Related Substances Act 101 of 1965, and low-tetrahydrocannabinol hemp is excluded from control under that Act rather than under the Drugs and Drug Trafficking Act.<ref name="ecsecc2020"/>{{verify source}}

Since decriminalisation a commercial sector has developed from which the traditional growers have largely been excluded. Medical cultivation requires a SAHPRA licence; by late 2023 the authority had issued 83 cannabis cultivation licences, and by 2020 not one had gone to the Eastern Cape.<ref name="sanews2023permits">{{cite web |title=Permits to change the lives of farmers |work=SAnews |publisher=South African Government News Agency |date=31 October 2023 |url=https://www.sanews.gov.za/features-south-africa/permits-change-lives-farmers}}</ref><ref name="ecsecc2020"/> The cost of meeting the security, quality-control and facility requirements, estimated in the millions of rand, places a licence beyond the reach of smallholders, a barrier documented both by the provincial development council and in comparative research on cannabis reform in South Africa and Zimbabwe.<ref name="ecsecc2020"/><ref name="howellRusenga2025">{{cite journal |last1=Howell |first1=S. |last2=Rusenga |first2=C. |title=Comparative analysis of cannabis legalization in South Africa and Zimbabwe: trajectories, commonalities, and divergences |journal=Journal of Illicit Economies and Development |year=2025 |volume=7 |issue=2 |pages=70–84 |doi=10.31389/jied.283}}</ref> On the ground, growers in Mpondoland reported that the farm-gate price of a twenty-litre measure had fallen from about 1,500 to 2,000 rand before 2018 to around 500 rand, an exclusion that community representatives had anticipated when licensing began.<ref name="nowicki2024"/><ref name="clark2019">{{cite news |last=Clark |first=C. |title='People feel betrayed': small-scale dagga growers fear exclusion from legal trade |work=GroundUp |date=14 October 2019 |url=https://www.groundup.org.za/article/people-feel-betrayed-small-scale-dagga-growers-fear-exclusion-legal-trade/}}</ref>

== Preparations and consumption ==

Dagga is consumed mainly by smoking, a habit documented among the Khoikhoi and Bantu-speaking peoples from the earliest colonial accounts. Southern African smoking traditions include earth pipes and water pipes as well as hand-rolled forms.<ref name="duToit1975"/><ref name="vanderMerwe2005"/> Surveys of the modern market confirm that traditional outdoor material is generally low in tetrahydrocannabinol relative to high-potency indoor product, although these surveys sample retail products rather than identified landraces.<ref name="viviers2021">{{cite journal |last1=Viviers |first1=H.J. |last2=Petzer |first2=A. |last3=Gordon |first3=R. |title=An assessment of the potency related to Cannabis-based products in the South African market |journal=Forensic Science International |year=2021 |volume=322 |pages=110754 |doi=10.1016/j.forsciint.2021.110754}}</ref> Growers in Mpondoland report that the traditional crop runs at roughly 2.5 to 8 per cent tetrahydrocannabinol against about 20 to 28 per cent for the commercial material now undercutting it.<ref name="nowicki2024"/>

== Religious and cultural use ==
{{Main|Cannabis in Rastafari culture|Cannabis in Xhosa culture|Cannabis in Zulu culture}}

Cannabis figures in the medicine and material culture of several of the country's peoples, although the ethnobotanical record is uneven and, for ritual use specifically, thin. Among the [[Xhosa people|Xhosa]] the plant is recorded under the names ''umya'', ''intsangu'' and ''matakwane'', its leaves used against whooping cough and asthma and, crushed, to reduce anxiety; this comes from a single-author ethnobotanical survey rather than a dedicated study; the same two names are recorded independently in Kepe's Pondoland livelihoods study.<ref name="bhat2013">{{cite journal |last=Bhat |first=R.B. |title=Plants of Xhosa people in the Transkei region of Eastern Cape (South Africa) with major pharmacological and therapeutic properties |journal=Journal of Medicinal Plants Research |year=2013 |volume=7 |issue=20 |pages=1474–1480 |url=https://academicjournals.org/journal/JMPR/article-abstract/C7203F824837}}</ref><ref name="kepe2003"/> Among the [[Sotho people|Sotho]] the plant is known as ''matekoane'' and is recorded in treatments for asthma and other conditions.<ref name="moteetee2011">{{cite journal |last1=Moteetee |first1=A. |last2=Van Wyk |first2=B.-E. |title=The medical ethnobotany of Lesotho: a review |journal=Bothalia |year=2011 |volume=41 |issue=1 |pages=209–228 |doi=10.4102/abc.v41i1.52}}</ref> Among the [[Zulu people|Zulu]] the plant, ''insangu'', is recorded in the early ethnography of A.T. Bryant, whose colonial-era framing is treated with caution.<ref name="bryant1949">{{cite book |last=Bryant |first=A.T. |title=The Zulu People, As They Were Before the White Man Came |location=Pietermaritzburg |publisher=Shuter & Shooter |year=1949 |pages=222–223}}</ref> The foundational compendium for these vernaculars and uses is Watt and Breyer-Brandwijk's ''Medicinal and Poisonous Plants of Southern and Eastern Africa'' (1962).<ref name="wattBB1962">{{cite book |last1=Watt |first1=J.M. |last2=Breyer-Brandwijk |first2=M.G. |title=The Medicinal and Poisonous Plants of Southern and Eastern Africa |edition=2nd |location=Edinburgh |publisher=E. & S. Livingstone |year=1962}}</ref> No dedicated peer-reviewed study documents cannabis in Xhosa initiation or as a discrete rite in Xhosa or Sotho ceremony; the psychoactive-plant ethnobotany of the region, including cannabis in divination and healing, is itself a recognised gap in the literature.<ref name="sobiecki2008">{{cite journal |last=Sobiecki |first=J.F. |title=A review of plants used in divination in southern Africa and their psychoactive effects |journal=Southern African Humanities |year=2008 |volume=20 |issue=2 |pages=333–351 |url=https://www.sahumanities.org/index.php/sah/article/view/369}}</ref><ref name="nyazema2024">{{cite journal |last1=Nyazema |first1=N.Z. |last2=Chanyandura |first2=J.T. |last3=Egan |first3=B. |title=The use and potential abuse of psychoactive plants in southern Africa: an overview of evidence and future potential |journal=Frontiers in Pharmacology |year=2024 |volume=15 |pages=1269247 |doi=10.3389/fphar.2024.1269247}}</ref>

The most visible modern religious use is by the country's [[Rastafari]] communities, for whom cannabis is a sacrament. Academic study of the movement in South Africa effectively begins with a 1986 survey by G. C. Oosthuizen, and the historian Midas Chawane, its principal synthesist, notes that there is no recorded history of when Rastafari first entered the country; individuals are traceable from the late 1970s, and the movement was submerged within the anti-apartheid struggle and largely unorganised before 1994, taking formal shape with the establishment of a Rastafari National Council in December 1997.<ref name="chawane2012">{{cite journal |last=Chawane |first=M.H. |title=The Rastafari movement in South Africa: before and after apartheid |journal=New Contree |year=2012 |issue=65 |pages=163–188 |doi=10.4102/nc.v65i0.311}}</ref> The sacramental use of cannabis, smoked, taken as tea and baked into food, and its collision with the country's drug law have been examined in the religious-studies literature.<ref name="chawane2012"/><ref name="pretorius2006">{{cite journal |last=Pretorius |first=S.P. |title=The significance of the use of ganja as a religious ritual in the Rastafari movement |journal=Verbum et Ecclesia |year=2006 |volume=27 |issue=3 |doi=10.4102/ve.v27i3.199}}</ref> That collision produced the first cannabis case to reach the Constitutional Court. In ''Prince v President of the Law Society of the Cape of Good Hope'' (2002), [[Gareth Prince]], a Rastafari candidate attorney refused registration because he intended to keep using cannabis as a sacrament, challenged the prohibition on freedom-of-religion grounds; the Court held by five votes to four that the limitation was justified and declined to read in a religious exemption. The same litigant's later challenge, on the ground of privacy rather than religion, succeeded in 2018.<ref name="prince2002">{{cite web |title=Prince v President of the Law Society of the Cape of Good Hope (CCT36/00) [2002] ZACC 1 |publisher=Constitutional Court of South Africa |date=25 January 2002 |url=https://www.saflii.org/za/cases/ZACC/2002/1.html |via=SAFLII}}</ref><ref name="prince2018"/>

== Conservation status ==

South Africa's cannabis landraces face the combined pressure of market displacement and scientific neglect. Since decriminalisation the low-potency traditional crop has lost its market to high-potency commercial genetics, and smallholders excluded from the licensed sector have little incentive to maintain landrace seed.<ref name="nowicki2024"/> At the same time the material has never been systematically collected or characterised: the 2024 review that surveyed the field found no study of the diversity or chemistry of southern African cannabis landraces, and no African cannabis assemblies in the international genome databases.<ref name="ndlangamandla2024"/> The varieties are therefore being eroded before they have been documented, a gap that makes their conservation both urgent and, as yet, unaddressed.<ref name="ndlangamandla2024"/><ref name="nowicki2024"/>

== See also ==

* [[Cannabis in Morocco]]
* [[Cannabis in Lesotho]]
* [[Cannabis in Eswatini]]
* [[Mpondoland]]
* [[Eastern Cape]]
* [[KwaZulu-Natal]]
* [[Cannabis sativa]]
* [[Landrace Cannabis]]
* [[Caput bonae Spei hodiernum (1719)]]
* [[The African Roots of Marijuana (2019)]]

== References ==

<references />

[[Category:South Africa]]

South Africa

Eloise Zomia — Thu, 02 Jul 2026 21:15:18 GMT

Eloise Zomia: Sync fix: correct the aerial-eradication paraquat sentence (de Greef: paraquat banned 1990, not used-until-1990) per the Cannabis in South Africa build

{{Short description|Cannabis in South Africa: dagga history, culture, law and landraces}}
{{Infobox Country
|country_name = South Africa
|local_name = Suid-Afrika · iNingizimu Afrika
|image = 
|image_caption =
|flag = 
|capital = Pretoria (executive), Cape Town (legislative), Bloemfontein (judicial)
|continent = Africa
|subregion = Southern Africa
|legal_status = Private adult use and cultivation lawful; no commercial market
|legal_status_class = decriminalized
|legal_status_year = 2018
|enforcement = Limited; unlicensed commercial trade policed
|coordinates = -30.5595, 22.9375
}}

'''South Africa''' is a country at the southern tip of Africa with one of the oldest and most fully documented cannabis cultures on the continent. The plant is known throughout the country as '''dagga''', a name adopted into Afrikaans from a [[Khoikhoi|Khoekhoe]] word, and southern African peoples were smoking it long before European settlement.<ref name="duToit1975">{{cite book |last=du Toit |first=B.M. |chapter=Dagga: the history and ethnographic setting of Cannabis sativa in southern Africa |editor-last=Rubin |editor-first=V. |title=Cannabis and Culture |location=The Hague |publisher=Mouton |year=1975 |pages=81–116 |doi=10.1515/9783110812060.81}}</ref> The naturalist Peter Kolb recorded the [[Khoikhoi]] use of ''dacha'' at the Cape between 1705 and 1713, noting that they had used it before tobacco reached them, which places cannabis use in the region before the Dutch settlement of 1652.<ref name="kolb-1745">{{cite book |last=Kolb |first=P. |title=Beschreibung des Vorgebürges der guten Hoffnung und derer darauf wohnenden Hottentotten |location=Frankfurt und Leipzig |publisher=Peter Conrad Monath |year=1745 |pages=138–140 |url=https://archive.org/details/b30501428 |via=archive.org}}</ref> The earliest records are read with caution, because the same vernacular term also denoted the unrelated indigenous plant ''Leonotis leonurus'' ("wild dagga"), so the first written mentions attest the word rather than, unambiguously, the cannabis plant.<ref name="nsuala2015">{{cite journal |last1=Nsuala |first1=B.N. |last2=Enslin |first2=G. |last3=Viljoen |first3=A. |title="Wild cannabis": a review of the traditional use and phytochemistry of Leonotis leonurus |journal=Journal of Ethnopharmacology |year=2015 |volume=174 |pages=520–539 |doi=10.1016/j.jep.2015.08.013}}</ref> No landrace cannabis growing regions, growing areas or accessions are yet documented on this wiki; the traditional heartland is [[Mpondoland]], in the [[Eastern Cape]].

Cannabis reached southern Africa in the wider dispersal of the plant through the continent, and by the seventeenth century it circulated in a regional exchange economy between [[Bantu peoples|Bantu-speaking]] farmers and [[Khoisan]] communities.<ref name="duvall2019">{{cite journal |last=Duvall |first=C.S. |title=A brief agricultural history of cannabis in Africa, from prehistory to canna-colony |journal=EchoGéo |year=2019 |issue=48 |doi=10.4000/echogeo.17599}}</ref> Distinct vernacular names attach to the plant in the country's languages, including ''insangu'' among the [[Zulu people|Zulu]], ''umya'' among the [[Xhosa people|Xhosa]] and ''matekoane'' among the [[Sotho people|Sotho]], while ''[[ganja]]'' was introduced separately by Indian indentured labourers in Natal from 1860.<ref name="paterson2009">{{cite thesis |last=Paterson |first=C. |title=Prohibition and resistance: a socio-political exploration of the changing dynamics of the southern African cannabis trade, c. 1850 – the present |degree=MA |publisher=Rhodes University |year=2009}}</ref>

Cannabis was criminalised through a sequence of colonial measures that began with restrictions on Indian indentured labourers in Natal and culminated in national prohibition in the 1920s.<ref name="paterson2009"/> In 1923 the government of [https://en.wikipedia.org/wiki/Jan_Smuts Jan Smuts] asked the [https://en.wikipedia.org/wiki/League_of_Nations League of Nations] to bring cannabis under international control, an intervention that fed into the plant's inclusion in the 1925 [https://en.wikipedia.org/wiki/International_Opium_Convention Geneva International Opium Convention] and gave South Africa a formative role in the global prohibition of cannabis.<ref name="chattopadhyaya2019">{{cite journal |last=Chattopadhyaya |first=U. |title=Dagga and prohibition: markets, animals, and the imperial contexts of knowledge, 1893–1925 |journal=South African Historical Journal |year=2019 |volume=71 |issue=4 |pages=587–613 |doi=10.1080/02582473.2019.1641738}}</ref><ref name="kozma2011">{{cite journal |last=Kozma |first=L. |title=The League of Nations and the debate over cannabis prohibition |journal=History Compass |year=2011 |volume=9 |issue=1 |pages=61–70 |doi=10.1111/j.1478-0542.2010.00740.x}}</ref> Prohibition was tightened under [https://en.wikipedia.org/wiki/Apartheid apartheid] and enforced in the rural growing districts through decades of policing and, from the 1980s, aerial herbicide spraying.<ref name="nkosi2020">{{cite journal |last1=Nkosi |first1=P.I. |last2=Devey |first2=R. |last3=Waetjen |first3=T. |title=Cannabis policing in mid-twentieth century South Africa |journal=Historia |year=2020 |volume=65 |issue=1 |doi=10.17159/2309-8392/2020/v65n1a4}}</ref>

Prohibition held for most of a century until 2018, when the [https://en.wikipedia.org/wiki/Constitutional_Court_of_South_Africa Constitutional Court], in ''Minister of Justice and Constitutional Development v Prince'', decriminalised the private use, possession and cultivation of cannabis by adults on the ground of the constitutional right to privacy (see [[#Legal status|Legal status]]).<ref name="prince2018">{{cite web |title=Minister of Justice and Constitutional Development and Others v Prince; National Director of Public Prosecutions and Others v Rubin; National Director of Public Prosecutions and Others v Acton and Others (CCT108/17) [2018] ZACC 30 |publisher=Constitutional Court of South Africa |date=18 September 2018 |url=https://www.saflii.org/za/cases/ZACC/2018/30.html |via=SAFLII}}</ref> Parliament later passed the Cannabis for Private Purposes Act, assented to on 28 May 2024, to codify the judgment, although the Act was not yet in force in 2026 and no legal commercial market for the plant existed.<ref name="cfppa2024">{{cite web |title=Cannabis for Private Purposes Act 7 of 2024 |publisher=Republic of South Africa |date=3 June 2024 |url=https://www.gov.za/documents/acts/cannabis-private-purposes-act-7-2024-english-sepedi-03-jun-2024}}</ref> Since decriminalisation the low-potency traditional crop of [[Mpondoland]] has been displaced on price by high-potency commercial material and smallholders have been excluded from the licensed medical market, while the country's landraces themselves remain scientifically uncharacterised.<ref name="kepe2003">{{cite journal |last=Kepe |first=T. |title=Cannabis sativa and rural livelihoods in South Africa: politics of cultivation, trade and value in Pondoland |journal=Development Southern Africa |year=2003 |volume=20 |issue=5 |pages=605–615 |doi=10.1080/0376835032000149252}}</ref><ref name="ndlangamandla2024">{{cite journal |last1=Ndlangamandla |first1=V.V. |last2=Salawu-Rotimi |first2=A. |last3=Bushula-Njah |first3=V.S. |last4=Hlongwane |first4=N. |last5=Sibandze |first5=G.F. |last6=Gebashe |first6=F. |last7=Mchunu |first7=N.P. |title=Finally freed—cannabis in South Africa: a review contextualised within global history, diversity, and chemical profiles |journal=Plants |year=2024 |volume=13 |issue=19 |pages=2695 |doi=10.3390/plants13192695}}</ref>

== Geography ==

South Africa occupies the southern tip of the African continent, with a long coastline on the Atlantic and Indian oceans and an interior plateau rising to the [https://en.wikipedia.org/wiki/Great_Escarpment,_Southern_Africa Great Escarpment].{{cn}} Drug-type cannabis cultivation is concentrated in the wetter, summer-rainfall east of the country, where the escarpment and its seaward foothills give the terrain, rainfall and relative inaccessibility that have long favoured the crop.<ref name="kepe2003"/> The principal growing landscape is the [[Eastern Cape]] [[Wild Coast]], the former [[Transkei]], and in particular the [[Mpondoland]] districts around [[Lusikisiki]], where cannabis is grown on smallholdings in broken, high-rainfall coastal country.<ref name="kepe2003"/> A second belt lies in the foothills and river valleys of [[KwaZulu-Natal]].<ref name="nkosi2020"/> The growing country continues across the international boundary into the highlands of [[Lesotho]] and the mountainous north of [[Eswatini]], with which the South African crop forms a single regional production complex.<ref name="bloomer2019">{{cite journal |last=Bloomer |first=J. |title=Turning cannabis into cash: agrarian change and Lesotho's evolving experience |journal=EchoGéo |year=2019 |issue=48 |doi=10.4000/echogeo.17612}}</ref><ref name="gastrow2003">{{cite report |last=Gastrow |first=P. |title=Mind-blowing: the cannabis trade in southern Africa |publisher=Institute for Security Studies |location=Cape Town |year=2003}}</ref>

== Demographics ==

South Africa has a population of roughly 63 million and recognises twelve official languages.{{cn}} Its cannabis history runs across several of the country's population groups, from the [[Khoisan]] peoples who used the plant at the Cape before European settlement to the [[Bantu peoples|Bantu-speaking]] farming communities of the east and the Indian indentured population brought to Natal in the nineteenth century.<ref name="duToit1975"/><ref name="paterson2009"/>

=== Communities with cannabis relationships ===

Several communities figure in the historical and ethnographic record for their relationship to cannabis. The [[Khoikhoi]] and wider [[Khoisan]] peoples are the earliest documented users at the Cape, recorded from the seventeenth century onward.<ref name="duToit1975"/><ref name="kolb-1745"/> Among Bantu-speaking peoples the plant was an established cultivated crop: [[Zulu people|Zulu]] communities grew ''insangu'', and the [[Mpondoland|Mpondo]] and other [[Xhosa people|Xhosa]]-speaking communities of the Eastern Cape are the smallholder cultivators of the country's principal growing region, where cannabis has been a significant if unequal source of rural income.<ref name="duToit1975"/><ref name="kepe2003"/> The Indian-descended communities of Natal introduced and retained the use of ''[[ganja]]'' from the 1860s.<ref name="paterson2009"/> Cannabis is also used as a sacrament by South Africa's [[Rastafari]] communities, and by traditional healers in medicine and divination.<ref name="chawane2012">{{cite journal |last=Chawane |first=M. |title=The Rastafari movement in South Africa: before and after apartheid |journal=New Contree |year=2012 |volume=65 |pages=163–188}}</ref>{{verify source}}<ref name="sobiecki2008">{{cite journal |last=Sobiecki |first=J.F. |title=A review of plants used in divination in southern Africa and their psychoactive effects |journal=Southern African Humanities |year=2008 |volume=20 |pages=333–351}}</ref>{{verify source}}

== Agriculture ==

Cannabis is one of the few high-value cash crops available to smallholders in the impoverished former-homeland districts of the [[Eastern Cape]] and [[KwaZulu-Natal]], and in [[Mpondoland]] it has been a central, if unequally distributed, part of rural livelihoods, grown mainly on plots of well under a hectare and traded through a chain in which the grower captures only a small fraction of the eventual retail price.<ref name="kepe2003"/> A 2020 provincial policy paper estimated that traditional cannabis (''insangu'') could generate farm sales of up to R150,000 per hectare a year, while a typical Mpondoland grower working about half a hectare received an income of around R30,000 a year, the farm-gate price being roughly 30 per cent of the eventual retail value.<ref name="ecsecc2020">{{cite report |last=Lewis |first=M. |title=Cannabis in the Eastern Cape: a policy discussion document |publisher=Eastern Cape Socio Economic Consultative Council |year=2020 |isbn=978-1-77593-076-1}}</ref> Beyond this informal crop, low-tetrahydrocannabinol hemp was declared an agricultural crop in 2021 and is regulated under the Plant Improvement Act, whose 2018 successor statute raised the permitted hemp threshold to two per cent when it commenced in December 2025.<ref name="cfppa2024"/>{{better source}}

== Cannabis in South Africa ==
{{Main|Cannabis in South Africa}}

Cannabis in South Africa is among the oldest and most fully documented cannabis traditions in Africa, running from pre-colonial [[Khoisan]] and Bantu-speaking use through a century of prohibition to the constitutional decriminalisation of private adult use in 2018.<ref name="duToit1975"/><ref name="ndlangamandla2024"/> The traditional low-potency crop is concentrated in the [[Eastern Cape]] and [[KwaZulu-Natal]] and remains scientifically uncharacterised even as it is displaced on price by high-potency commercial genetics.<ref name="ndlangamandla2024"/><ref name="kepe2003"/>

=== History ===
{{Main|History of cannabis in South Africa}}

Systematic documentary evidence begins with the accounts of European travellers at and beyond the Cape. The journal of [https://en.wikipedia.org/wiki/Jan_van_Riebeeck Jan van Riebeeck] records the [[Khoikhoi]] esteem for ''daccha'' in 1658, the earliest written use of the term, although whether it denotes cannabis or wild dagga at that date is disputed.<ref name="duToit1975"/>{{verify source}} Kolb's ''[[Caput bonae Spei hodiernum (1719)|Caput Bonae Spei Hodiernum]]'' (1719) gives the first detailed account, describing ''dacha'' as a herb the Khoikhoi prized above all others and stating that they had used it before tobacco was known to them.<ref name="kolb-1745"/> Archaeological work places the smoking habit in Africa well before the arrival of tobacco, including fourteenth-century water-pipe bowls from Ethiopia that retained cannabis residue.<ref name="vanderMerwe2005">{{cite journal |last=van der Merwe |first=N.J. |title=Antiquity of the smoking habit in Africa |journal=Transactions of the Royal Society of South Africa |year=2005 |volume=60 |issue=2 |pages=147–150 |doi=10.1080/00359190509520494}}</ref> How cannabis reached southern Africa is not settled: the geographer Chris Duvall holds that the plant came to eastern Africa from southern Asia by maritime trade and spread within the continent mostly after 1500, while the historian David Gordon has traced how dagga structured trading networks among the precolonial [[Khoikhoi]].<ref name="duvall2019"/><ref name="gordon1996">{{cite journal |last=Gordon |first=D. |title=From rituals of rapture to dependence: the political economy of Khoikhoi narcotic consumption, c.1487–1870 |journal=South African Historical Journal |year=1996 |volume=35 |issue=1 |pages=62–88}}</ref>{{verify source}}

The first restrictions targeted the ''[[ganja]]'' brought by Indian indentured labourers, through section 70 of Natal's Law 2 of 1870, and the association of cannabis with racial anxiety and alleged insanity spread through the colonies.<ref name="paterson2009"/> National prohibition followed: a customs measure of 1922 controlled dagga as a habit-forming drug, and the Medical, Dental and Pharmacy Act 13 of 1928 prohibited its unlicensed cultivation and supply. In parallel, South Africa pressed for international control, asking the [https://en.wikipedia.org/wiki/League_of_Nations League of Nations] in 1923 to schedule the plant and so helping to write it into the 1925 Geneva Convention.<ref name="chattopadhyaya2019"/><ref name="kozma2011"/><ref name="mills2003">{{cite book |last=Mills |first=J.H. |title=Cannabis Britannica: Empire, Trade, and Prohibition 1800–1928 |location=Oxford |publisher=Oxford University Press |year=2003 |chapter=The League of Nations and British legislation, 1912–1928 |pages=152–188 |doi=10.1093/oso/9780199249381.003.0007}}</ref> Enforcement was racially structured, targeting urban possession by Black South Africans while cannabis control operated as one instrument within the wider legal architecture of segregation; prohibition was tightened under the Abuse of Dependence-Producing Substances and Rehabilitation Centres Act 41 of 1971 and the Drugs and Drug Trafficking Act 140 of 1992.<ref name="nkosi2020"/><ref name="waetjen2021">{{cite book |last=Waetjen |first=T. |chapter=Dagga: how South Africa made a dangerous drug, 1902–1928 |editor1-last=Richert |editor1-first=L. |editor2-last=Mills |editor2-first=J.H. |title=Cannabis: Global Histories |location=Cambridge, MA |publisher=MIT Press |year=2021 |pages=83–107}}</ref><ref name="waetjen2022">{{cite journal |last=Waetjen |first=T. |title=South Africa's century of cannabis politics, 1922–2022 |journal=South African Historical Journal |year=2022 |volume=74 |issue=2 |doi=10.1080/02582473.2022.2128274}}</ref>

From the 1980s the [https://en.wikipedia.org/wiki/South_African_Police_Service South African Police Service] eradicated rural crops from the air, spraying herbicide over the [[Transkei]] and the [[KwaZulu-Natal]] foothills from low-flying helicopters. According to reporting by the journalist Kimon de Greef, a civil-society campaign in the former Natal secured a ban on the herbicide paraquat in 1990, and the police thereafter sprayed glyphosate; the programme was augmented in 2004 by a helicopter and spraying equipment donated by the United States.<ref name="degreef2016">{{cite news |last=de Greef |first=K. |title=Cash crops poisoned in Pondoland |work=GroundUp |date=7 April 2016 |url=https://groundup.org.za/article/cash-crops-poisoned-pondoland/}}</ref><ref name="idpc2016">{{cite web |publisher=International Drug Policy Consortium |title=Cannabis: forced crop eradication in South Africa |date=19 January 2016 |url=https://idpc.net/publications/2016/01/cannabis-forced-crop-eradication-in-south-africa}}</ref> After the World Health Organization classified glyphosate as a probable carcinogen in 2015 the practice drew legal and civil-society challenge; the police conducted no aerial spraying in 2016, and in 2018 the United Nations Committee on Economic, Social and Cultural Rights called on South Africa to end aerial fumigation in [[Mpondoland]].<ref name="degreef2016"/><ref name="cescr2018">{{cite report |author=UN Committee on Economic, Social and Cultural Rights |title=Concluding observations on the initial report of South Africa (E/C.12/ZAF/CO/1) |publisher=United Nations |year=2018}}</ref>{{verify source}} The prohibition era ended in 2018 with the ''Prince'' judgment and the enactment of the Cannabis for Private Purposes Act in 2024 (see [[#Legal status|Legal status]]).<ref name="prince2018"/><ref name="cfppa2024"/>

=== Cultivation ===
{{Main|Cannabis cultivation in South Africa}}

The former [[Transkei]] districts of [[Mpondoland]], on the [[Eastern Cape]] [[Wild Coast]], are the country's best-known cannabis-growing region, where the crop is grown mainly by smallholders on plots of well under a hectare.<ref name="kepe2003"/> Cultivation is also long established in the foothills of [[KwaZulu-Natal]], and the wider region forms a single production complex with neighbouring [[Lesotho]] and [[Eswatini]]: Lesotho is a major producer whose crop is trafficked largely through South Africa, and Eswatini's mountainous north is a further source of high-quality cannabis.<ref name="bloomer2019"/><ref name="gastrow2003"/> Traditional South African cannabis is often referred to by market names such as ''[[Durban Poison]]'' and ''[[Swazi Gold]]'', but these are reputational trade terms rather than scientifically defined varieties, and the potency figures attached to them circulate in commercial seed material without a peer-reviewed basis.<ref name="ndlangamandla2024"/> A morphological survey of eight landrace collections from [[Lusikisiki]] confirmed them as ''[[Cannabis sativa]]'' but did not quantify their cannabinoid content.<ref name="dumani2024">{{cite journal |last1=Dumani |first1=A. |last2=Silwana |first2=T.T. |last3=Mpambani |first3=B. |last4=Oyedeji |first4=A.O. |title=Identification of medicinal Cannabis landraces found in Lusikisiki, Eastern Cape Province, South Africa |journal=Journal of People, Plants, and Environment |year=2024 |volume=27 |issue=4 |pages=259–267 |doi=10.11628/ksppe.2024.27.4.259}}</ref>

=== Preparations and consumption ===

[[Dagga]] is consumed mainly by smoking, a habit documented among the [[Khoikhoi]] and Bantu-speaking peoples from the earliest colonial accounts, and southern African smoking traditions include earth pipes and water pipes as well as hand-rolled forms.<ref name="duToit1975"/><ref name="vanderMerwe2005"/> Surveys of the modern South African market confirm that traditional outdoor material is generally low in tetrahydrocannabinol relative to high-potency indoor product, although they sample retail products rather than identified landraces.<ref name="viviers2021">{{cite journal |last1=Viviers |first1=H.J. |last2=Petzer |first2=A. |last3=Gordon |first3=R. |title=An assessment of the potency related to Cannabis-based products in the South African market |journal=Forensic Science International |year=2021 |volume=322 |pages=110754 |doi=10.1016/j.forsciint.2021.110754}}</ref> Growers in [[Mpondoland]] report that the traditional crop runs at roughly 2.5 to 8 per cent tetrahydrocannabinol against about 20 to 28 per cent for the commercial material now undercutting it.<ref name="nowicki2024">{{cite news |last=Nowicki |first=L. |title=Mpondoland dagga growers left out to dry |work=GroundUp |date=29 July 2024 |url=https://groundup.org.za/article/mpondoland-dagga-growers-left-out-to-dry/}}</ref>

=== Religious and cultural use ===
{{Main|Cannabis in Rastafari culture|Cannabis in Xhosa culture|Cannabis in Zulu culture}}

Cannabis has a place in several of South Africa's cultural and religious traditions. It is used as a sacrament by the country's [[Rastafari]] communities, whose most prominent legal advocate, [[Gareth Prince]], brought both a 2002 religious-freedom challenge and the litigation that ended in the 2018 privacy judgment.<ref name="prince2018"/><ref name="chawane2012"/> Cannabis also appears in the practice of traditional healers, who are reported to use the plant, sometimes with others, in medicine and divination, although the strongest such claims rest on individual testimony and are presented as reported rather than established.<ref name="nyazema2024">{{cite journal |last1=Nyazema |first1=N.Z. |last2=Chanyandura |first2=J.T. |last3=Egan |first3=B. |title=The use and potential abuse of psychoactive plants in southern Africa: an overview of evidence and future potential |journal=Frontiers in Pharmacology |year=2024 |volume=15 |pages=1269247 |doi=10.3389/fphar.2024.1269247}}</ref><ref name="sobiecki2008"/>

== Trade and commerce ==

Historically South Africa has been a significant producer and exporter of cannabis. In 2005 the country seized an estimated 292 tonnes of cannabis herb, about 42 per cent of all African seizures and, in that year, the third-highest national total in the world; this often-cited standing is specific to 2005 and does not describe later years, when South Africa was routinely outranked within Africa.<ref name="unodc2007africa">{{cite report |author=United Nations Office on Drugs and Crime |title=Cannabis in Africa: an overview |publisher=UNODC |year=2007}}</ref> Estimates of the area under cannabis generally fall between 1,000 and 2,000 hectares; a mid-1990s figure that implied South Africa was the world's largest producer was later repudiated by the UNODC as a calculation error and should not be repeated.<ref name="unodc2002profile">{{cite report |author=United Nations Office on Drugs and Crime, Regional Office for Southern Africa |title=South Africa: country profile on drugs and crime |publisher=UNODC |year=2002}}</ref>

Since decriminalisation a commercial "green rush" has developed from which the traditional growers have largely been excluded. Medical cultivation requires a licence from the [https://en.wikipedia.org/wiki/South_African_Health_Products_Regulatory_Authority South African Health Products Regulatory Authority]; by late 2023 the authority had issued 83 cultivation licences, and by 2020 not one had gone to the [[Eastern Cape]].<ref name="ecsecc2020"/> The cost of meeting the security, quality-control and facility requirements, estimated in the millions of rand, places a licence beyond the reach of smallholders, a barrier documented both by the provincial development council and in comparative research on cannabis reform in South Africa and Zimbabwe.<ref name="ecsecc2020"/><ref name="howellRusenga2025">{{cite journal |last1=Howell |first1=S. |last2=Rusenga |first2=C. |title=Comparative analysis of cannabis legalization in South Africa and Zimbabwe: trajectories, commonalities, and divergences |journal=Journal of Illicit Economies and Development |year=2025 |volume=7 |issue=2 |pages=70–84 |doi=10.31389/jied.283}}</ref> Government has framed the sector as an engine of rural development: President [https://en.wikipedia.org/wiki/Cyril_Ramaphosa Cyril Ramaphosa] told Parliament in the 2022 State of the Nation Address that the hemp and cannabis sector could create "more than 130 000 new jobs", a projection rather than a realised outcome.<ref name="sona2022">{{cite web |last=Ramaphosa |first=C. |title=2022 State of the Nation Address |publisher=Republic of South Africa |date=10 February 2022 |url=https://www.gov.za/news/speeches/president-cyril-ramaphosa-2022-state-nation-address-10-feb-2022}}</ref>{{verify source}} On the ground, growers in [[Mpondoland]] report that the farm-gate price of a twenty-litre measure has fallen from about R1,500 to R2,000 before 2018 to around R500, an exclusion community leaders had anticipated when licensing began.<ref name="nowicki2024"/><ref name="clark2019">{{cite news |last=Clark |first=C. |title='People feel betrayed': small-scale dagga growers fear exclusion from legal trade |work=GroundUp |date=14 October 2019 |url=https://www.groundup.org.za/article/people-feel-betrayed-small-scale-dagga-growers-fear-exclusion-legal-trade/}}</ref>

=== Legal status ===
{{Main|Cannabis law in South Africa}}

Private adult use, possession and cultivation of cannabis are lawful, following the [https://en.wikipedia.org/wiki/Constitutional_Court_of_South_Africa Constitutional Court]'s 2018 judgment in ''Prince'', which held that criminalising an adult's private use, possession or cultivation for personal consumption unjustifiably limited the right to privacy; purchase, dealing and public use were not decriminalised.<ref name="prince2018"/> The Cannabis for Private Purposes Act 7 of 2024 was assented to on 28 May 2024 to codify the judgment; it removes cannabis from the schedules of the Drugs and Drug Trafficking Act and provides for the expungement of past convictions, but sets no quantities of its own and comes into force only on presidential proclamation, which had not been issued by 2026.<ref name="cfppa2024"/> Draft regulations published for comment in February 2026 proposed limits of 750 grams and five plants per adult.<ref name="cfppa2024"/> There is no legal commercial recreational market; medical cannabis is regulated separately by the South African Health Products Regulatory Authority under the Medicines and Related Substances Act 101 of 1965.<ref name="ecsecc2020"/>

== Growing Regions ==

Landrace cannabis growing regions currently documented on the wiki:
{{#ask:
[[Category:Growing Regions]]
[[Has country::South Africa]]
|?Has conservation status
|mainlabel=Region
|format=table
|class=wikitable sortable
|default=No growing regions documented yet.
}}

== Growing Areas ==

Landrace cannabis growing areas currently documented on the wiki:
{{#ask:
[[Category:Growing Areas]]
[[Has country::South Africa]]
|?Has growing region
|?Has conservation status
|mainlabel=Growing Area
|format=table
|class=wikitable sortable
|default=No growing areas documented yet.
}}

== Accessions ==

=== Map ===

=== List ===

{{#ask:
[[Category:Accessions]]
[[Has country::South Africa]]
|?Has descriptive name=Name
|?Has conservation priority=Priority
|?Has collection date=Collected
|?Has growing area=Area
|mainlabel=Accession ID
|format=table
|class=wikitable sortable
|sort=Has collection date
|order=desc
|default=No accessions documented yet.
}}

== Conservation status ==

South Africa's cannabis landraces face the combined pressure of market displacement and scientific neglect. Since decriminalisation the low-potency traditional crop has lost its market to high-potency commercial genetics, and smallholders excluded from the licensed sector have little incentive to maintain landrace seed.<ref name="nowicki2024"/> At the same time the material has never been collected or characterised: a 2024 review states that no study has examined the diversity or chemistry of southern African cannabis landraces, and that international genome databases contain no African cannabis assemblies at all.<ref name="ndlangamandla2024"/> The varieties are therefore being eroded before they have been documented, a gap that makes conservation both urgent and, as yet, unaddressed.<ref name="ndlangamandla2024"/><ref name="kepe2003"/>

== Recent news ==

{{#ask:[[Category:News Item]][[Has country::South Africa]]
|?Has event date=Date
|?Has event category=Category
|sort=Has event date
|order=desc
|limit=15
|format=broadtable
|class=wikitable sortable
|headers=plain
|mainlabel=Article
|default=No recent news items.
}}

== See also ==

* [[Cannabis in South Africa]]
* [[Mpondoland]]
* [[Eastern Cape]]
* [[KwaZulu-Natal]]
* [[Cannabis in Lesotho]]
* [[Cannabis in Eswatini]]
* [[Cannabis in Morocco]]
* [[Cannabis sativa]]
* [[Landrace Cannabis]]
* [[Caput bonae Spei hodiernum (1719)]]
* [[The African Roots of Marijuana (2019)]]

== References ==

<references />

The African Roots of Marijuana (2019)

Eloise Zomia — Thu, 02 Jul 2026 08:07:30 GMT

Eloise Zomia: Reconcile record date 2026-07-01 to 2026-07-02

{{Infobox book
| title = The African Roots of Marijuana
| image = AfricanRootsofMarijuana.jpg
| author = Chris S. Duvall
| author_affiliation = University of New Mexico
| publisher = Duke University Press
| place = Durham, North Carolina
| year = 2019
| pages = 360
| language = English
| status = Published
| subjects = Cannabis history, African history, Atlantic slave trade, Colonialism, Drug prohibition
| relevance = Traces the arrival, African diffusion and Atlantic transfer of cannabis cultivation and smoking cultures, and the racialised colonial myths built around them: foundational context for African and diaspora landrace history and for the origins of cannabis prohibition.
| isbn = 978-1-4780-0394-6
| doi = 10.1215/9781478004530
}}
'''''The African Roots of Marijuana''''' is a 2019 book by the geographer Chris S. Duvall, published by Duke University Press. It is a historical and biogeographical study of cannabis in Africa and of the plant's movement from Africa into the Atlantic world, and argues that African smoking cultures and the Atlantic slave trade were central to the global history of cannabis as a smoked drug.<ref name="dukeup">{{cite web |title=The African Roots of Marijuana |website=Duke University Press |url=https://www.dukeupress.edu/the-african-roots-of-marijuana |access-date=2026-07-02}}</ref><ref name="book">{{cite book |last=Duvall |first=Chris S. |title=The African Roots of Marijuana |publisher=Duke University Press |location=Durham, North Carolina |year=2019 |isbn=978-1-4780-0394-6 |doi=10.1215/9781478004530}}</ref>

Duvall traces cannabis from its arrival in Africa from South Asia about a thousand years ago through its spread across the continent, and argues that European colonial accounts, often fictionalised and built on racial stereotypes, produced durable myths that cast Africa as a cultural backwater and Africans as predisposed to drug use. He holds that these myths continue to shape contemporary thinking about the plant.<ref name="dukeup" />

== Author ==

Chris S. Duvall is Professor of Geography and Environmental Studies at the University of New Mexico and a biogeographer of people-plant relationships. He has written widely on the history of cannabis in Africa, including a 2019 article in ''EchoGéo'' setting out four historical phases of African cannabis cultivation.<ref name="echogeo">{{cite journal |last=Duvall |first=Chris S. |title=A brief agricultural history of cannabis in Africa, from prehistory to canna-colony |journal=EchoGéo |year=2019 |doi=10.4000/echogeo.17599}}</ref>

== Background ==

The book gives a book-length, Africa-centred treatment to the history of cannabis, a subject that European colonial writing had, in Duvall's account, long distorted through fictionalised and racialised description.<ref name="dukeup" />

== Argument ==

Duvall argues that cannabis reached Africa from South Asia roughly a thousand years ago and was cultivated and used across much of the continent, where African smoking cultures reworked it into what he describes as a fast-acting and easily dosed drug.<ref name="dukeup" /> He connects the plant's African history to colonialism, the Atlantic slave trade and global capitalism, and reads cannabis use in Africa and its diaspora as bound up with oppressive labour, with recreation and with religious and political movements.<ref name="dukeup" /> A chapter on the plant's passage across the Atlantic sets out his case that African precedents, carried by enslaved people, shaped the later smoked cannabis of the Americas.<ref name="dukeup" /><ref name="echogeo" />

== Contents ==

The book comprises ten chapters:<ref name="dukeup" />
# Cannabis and Africa
# Race and Plant Evolution
# Roots of African Cannabis Cultures
# Cannabis Colonizes the Continent
# A Convenient Crop
# Society Overturned: The Bena Riamba
# Cannabis Crosses the Atlantic
# Working under the Influence
# Buying and Banning
# Rethinking Marijuana

== Reception ==

The book was reviewed in journals of history, African studies and the history of medicine, including ''The American Historical Review'',<ref name="flint">{{cite journal |last=Flint |first=Karen |title=The African Roots of Marijuana by Chris S. Duvall |journal=The American Historical Review |year=2020 |volume=125 |issue=5 |pages=2046–2047 |doi=10.1093/ahr/rhaa359}}</ref> the ''Bulletin of the History of Medicine'',<ref name="ambler">{{cite journal |last=Ambler |first=Charles |title=The African Roots of Marijuana by Chris S. Duvall |journal=Bulletin of the History of Medicine |year=2020 |volume=94 |issue=2 |pages=303–304 |doi=10.1353/bhm.2020.0045}}</ref> the ''Journal of the History of Medicine and Allied Sciences'',<ref name="klantschnig">{{cite journal |last=Klantschnig |first=Gernot |title=Chris S. Duvall, The African Roots of Marijuana |journal=Journal of the History of Medicine and Allied Sciences |year=2021 |volume=76 |issue=2 |pages=222–224 |doi=10.1093/jhmas/jrab012}}</ref> ''Social History of Medicine'',<ref name="guba">{{cite journal |last=Guba |first=David A. |title=Chris S. Duvall, The African Roots of Marijuana |journal=Social History of Medicine |year=2020 |volume=33 |issue=4 |pages=1391–1393 |doi=10.1093/shm/hkaa030}}</ref> the ''Journal of Global South Studies'',<ref name="kachipande">{{cite journal |last=Kachipande |first=Sitinga |title=The African Roots of Marijuana by Chris S. Duvall |journal=Journal of Global South Studies |year=2021 |volume=38 |issue=2 |pages=403–405 |doi=10.1353/gss.2021.0036}}</ref> and the journal ''Africa''.<ref name="nkosi">{{cite journal |last=Nkosi |first=Phumla Innocent |title=Chris S. Duvall, The African Roots of Marijuana |journal=Africa |year=2025 |volume=95 |issue=1 |pages=115–117 |doi=10.1017/s0001972025000063}}</ref>

== See also ==

* [[Cannabis: Global Histories (2021)]]
* [[Ganja matters (2026)]]
* [[Research:2019-01-01/Journal article/a-brief-agricultural-history-of-cannabis-in-africa-from-prehistory-to-canna-colony|A brief agricultural history of cannabis in Africa (Duvall, 2019)]]

== References ==

{{Reflist}}

Research:2019-01-01/Journal article/a-brief-agricultural-history-of-cannabis-in-africa-from-prehistory-to-canna-colony

Eloise Zomia — Thu, 02 Jul 2026 07:19:39 GMT

Eloise Zomia: Reconcile record date 2026-07-01 to 2026-07-02

{{ResearchItem
|date=2019-01-01
|paper_name=A brief agricultural history of cannabis in Africa, from prehistory to canna-colony
|paper_kind=Journal article
|year=2019
|authors=Chris S. Duvall
|venue=EchoGéo
|doi=10.4000/echogeo.17599
|source=https://journals.openedition.org/echogeo/17599
|pdf=https://journals.openedition.org/echogeo/pdf/17599
|summary=Outlines four historical phases of cannabis cultivation in Africa: the plant's initial dispersal across the continent and the diverse farming and use cultures that developed; the formal markets that arose under colonial regimes even as colonial administrations more widely suppressed the crop; the twentieth-century drug laws that reshaped the economics of production and made cannabis attractive to resource-poor farmers; and the recent legalisation of cultivation in specific national contexts. Duvall argues that this agricultural history has produced relationships that let actors in the Global North extract more value from African cannabis than African farmers can. Foundational reference for African cannabis agricultural history and the extractive dynamics of recent legalisation.
|record_created=2026-07-02
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2019-01-01]]
[[Has record created::2026-07-02]]
[[Has research title::A brief agricultural history of cannabis in Africa, from prehistory to canna-colony]]
[[Has research type::Journal article]]
[[Has research authors::Chris S. Duvall]]
[[Has research venue::EchoGéo]]
[[Has research year::2019]]
[[Has DOI::10.4000/echogeo.17599]]
[[Has source URL::https://journals.openedition.org/echogeo/17599]]
[[Has PDF URL::https://journals.openedition.org/echogeo/pdf/17599]]
[[Has research summary::Outlines four historical phases of cannabis cultivation in Africa: the plant's initial dispersal across the continent and the diverse farming and use cultures that developed; the formal markets that arose under colonial regimes even as colonial administrations more widely suppressed the crop; the twentieth-century drug laws that reshaped the economics of production and made cannabis attractive to resource-poor farmers; and the recent legalisation of cultivation in specific national contexts. Duvall argues that this agricultural history has produced relationships that let actors in the Global North extract more value from African cannabis than African farmers can. Foundational reference for African cannabis agricultural history and the extractive dynamics of recent legalisation.]]
</div>

Research:2024-03-15/Journal article/business-as-usual-cannabis-legalisation-and-agrarian-change-in-zimbabwe

Eloise Zomia — Thu, 02 Jul 2026 07:19:38 GMT

Eloise Zomia: Reconcile record date 2026-07-01 to 2026-07-02

{{ResearchItem}}` records, ingested via `landrace-wiki-research-item-author` from the strongest leads in
[`Source_TalkingDrugs_Gomes-2026_global-south-extractive-cannabis.md`](Source_TalkingDrugs_Gomes-2026_global-south-extractive-cannabis.md).
**Staged drafts — NOT deployed.**

**Citation verification (Crossref canonical + Semantic Scholar abstracts).** Both DOIs verified; every field
below matches the canonical record. Two corrections vs the secondary source's transcription:
- The Zimbabwe paper is by **Rusenga, Klantschnig, Carrier & Howell** — **not Duvall** (the TalkingDrugs
piece merely cited it). Confirmed via Crossref.
- The Duvall "OpenEdition 17599" lead resolves to **EchoGéo `10.4000/echogeo.17599`** (2019).

**Dedup** — both **create-new** (0 hits on titles / authors / "Rusenga" / "canna-colony"). **Chris Duvall is
not yet on the wiki** — this is his first record.

**Place** — Zimbabwe paper is place-anchored → emits `country=Zimbabwe` + `[[Has country::Zimbabwe]]`
(Zimbabwe is not in `context/INDEX.md`; place-as-field, no `context/zimbabwe/` yet). The Duvall paper is
**continent-scale (Africa-wide)** → no geographic SMW (no single-country anchor; Africa is not a country in
the geo hierarchy), place stated in the summary.

**Source-URL notes** — Duvall/EchoGéo is open access (article + PDF both resolve 200). The Zimbabwe paper's
publisher page returns 403 to bots (Taylor & Francis paywall); the DOI is Crossref-verified, so the
tandfonline URL is the correct human-facing source (no free PDF → `pdf` omitted).

**Date note** — Crossref gives the Duvall article year-only (2019); staged as `2019-01-01` per the corpus
year-only convention (e.g. the existing `Research:2024-01-01/Book chapter/…`). Pin the exact EchoGéo issue
date if wanted.

**Further Duvall candidates found (NOT staged — report only, your call to ingest next):**
- *CANNABIS: Ethnobotany and Evolution*, Geographical Review 2014 (`10.1111/j.1931-0846.2014.12050.x`).
- *Cannabis: A brief global historical biogeography*, Research Handbook on Drugs and Society 2026, book
chapter (`10.4337/9781802209143.00013`).
- *Cannabis and Tobacco in Precolonial and Colonial Africa*, Oxford Research Encyclopedia 2017 (reference
entry, `10.1093/acrefore/9780190277734.013.44`).
- **Prolific-author near-identical-title hazard:** *Drug laws, bioprospecting and the agricultural heritage
of Cannabis in Africa* exists as **both** a 2016 journal article (Space and Polity,
`10.1080/13562576.2016.1138674`) **and** a 2017 book chapter (`10.4324/9781315204468-2`) — distinct works,
do not conflate if ingesting.
- **Book (type not built):** *The African Roots of Marijuana* (Duke University Press, 2019) is a **monograph**
→ Book type, whose skill does not exist yet. Flag for the historical-source/Book pipeline; not forced here.

**Target page titles**
- `Research:2024-03-15/Journal article/business-as-usual-cannabis-legalisation-and-agrarian-change-in-zimbabwe`
- `Research:2019-01-01/Journal article/a-brief-agricultural-history-of-cannabis-in-africa-from-prehistory-to-canna-colony`

**Deploy** — no batch script for research items; deploy each via `Form:ResearchItem` or a direct
authenticated API create at the canonical title (the `tools/` credential). Needs an explicit go.

---

## Record 1 — Rusenga et al. 2024 (Zimbabwe, agrarian change)

{{ResearchItem
|date=2024-03-15
|paper_name=Business as usual? Cannabis legalisation and agrarian change in Zimbabwe
|paper_kind=Journal article
|year=2024
|authors=Clemence Rusenga, Gernot Klantschnig, Neil Carrier, Simon Howell
|venue=The Journal of Peasant Studies
|doi=10.1080/03066150.2024.2326568
|source=https://www.tandfonline.com/doi/full/10.1080/03066150.2024.2326568
|country=Zimbabwe
|summary=Examines Zimbabwe's legal cannabis sector since its 2018 opening to medicinal and industrial production, with unlicensed uses remaining criminalised, and the implications for agrarian change. The authors argue the formal sector is structured to favour those with substantial resources, marginalising small-scale farmers and illicit cultivators and raising the risk of corporate capture, though several factors undermine agribusiness production. They find that the prohibition of recreational cannabis and the sector's export focus together preserve illicit markets and sustain illicit livelihoods. An agrarian political-economy reference for cannabis commercialisation in Zimbabwe and the broader Global South pattern of export-oriented legal sectors marginalising traditional cultivators.
|record_created=2026-07-02
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2024-03-15]]
[[Has record created::2026-07-02]]
[[Has research title::Business as usual? Cannabis legalisation and agrarian change in Zimbabwe]]
[[Has research type::Journal article]]
[[Has research authors::Clemence Rusenga, Gernot Klantschnig, Neil Carrier, Simon Howell]]
[[Has research venue::The Journal of Peasant Studies]]
[[Has research year::2024]]
[[Has DOI::10.1080/03066150.2024.2326568]]
[[Has source URL::https://www.tandfonline.com/doi/full/10.1080/03066150.2024.2326568]]
[[Has research summary::Examines Zimbabwe's legal cannabis sector since its 2018 opening to medicinal and industrial production, with unlicensed uses remaining criminalised, and the implications for agrarian change. The authors argue the formal sector is structured to favour those with substantial resources, marginalising small-scale farmers and illicit cultivators and raising the risk of corporate capture, though several factors undermine agribusiness production. They find that the prohibition of recreational cannabis and the sector's export focus together preserve illicit markets and sustain illicit livelihoods. An agrarian political-economy reference for cannabis commercialisation in Zimbabwe and the broader Global South pattern of export-oriented legal sectors marginalising traditional cultivators.]]
[[Has country::Zimbabwe]]
</div>

Research:2026-05-08/Journal article/genetic-architecture-of-phenological-morphological-and-phytochemical-traits-in-cannabis-landraces

Eloise Zomia — Thu, 02 Jul 2026 06:53:51 GMT

Eloise Zomia: Reconcile record date 2026-07-01 to 2026-07-02

{{ResearchItem
|date=2026-05-08
|paper_name=Genetic architecture of phenological, morphological, and phytochemical traits in Cannabis landraces
|paper_kind=Journal article
|year=2026
|authors=Mehdi Babaei, Davoud Torkamaneh
|venue=The Plant Genome
|doi=10.1002/tpg2.70243
|source=https://acsess.onlinelibrary.wiley.com/doi/10.1002/tpg2.70243
|pdf=https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/tpg2.70243
|country=Iran
|summary=Genome-wide association study of 145 Iranian Cannabis sativa landrace accessions, male and female, genotyped at roughly 233,000 common SNPs. The analysis resolves the collection into three genetically distinct subpopulations shaped by geography, climate and traditional cultivation, and identifies 91 genomic regions associated with 40 phenological, morphological and phytochemical traits, including 15 pleiotropic loci linked to flowering time, plant architecture, biomass accumulation and cannabinoid biosynthesis. The authors report high heritability for most traits and rapid linkage disequilibrium decay, and present the panel as a resource for high-resolution mapping and marker-assisted selection towards cultivars with tailored cannabinoid profiles. A population-scale genetic-architecture reference for the Iran gene pool, complementing the earlier Mostafaei Dehnavi et al. 2025 population-genomics study of Iranian Cannabis.
|record_created=2026-07-02
}}

[[Category:Research Item]]

<div style="display:none;">
[[Has research date::2026-05-08]]
[[Has record created::2026-07-02]]
[[Has research title::Genetic architecture of phenological, morphological, and phytochemical traits in Cannabis landraces]]
[[Has research type::Journal article]]
[[Has research authors::Mehdi Babaei, Davoud Torkamaneh]]
[[Has research venue::The Plant Genome]]
[[Has research year::2026]]
[[Has DOI::10.1002/tpg2.70243]]
[[Has source URL::https://acsess.onlinelibrary.wiley.com/doi/10.1002/tpg2.70243]]
[[Has PDF URL::https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/tpg2.70243]]
[[Has research summary::Genome-wide association study of 145 Iranian Cannabis sativa landrace accessions, male and female, genotyped at roughly 233,000 common SNPs. The analysis resolves the collection into three genetically distinct subpopulations shaped by geography, climate and traditional cultivation, and identifies 91 genomic regions associated with 40 phenological, morphological and phytochemical traits, including 15 pleiotropic loci linked to flowering time, plant architecture, biomass accumulation and cannabinoid biosynthesis. The authors report high heritability for most traits and rapid linkage disequilibrium decay, and present the panel as a resource for high-resolution mapping and marker-assisted selection towards cultivars with tailored cannabinoid profiles. A population-scale genetic-architecture reference for the Iran gene pool, complementing the earlier Mostafaei Dehnavi et al. 2025 population-genomics study of Iranian Cannabis.]]
[[Has country::Iran]]
</div>

News:2026-06-08/Enforcement/police-and-soldiers-uproot-800-marijuana-plants-worth-150-000-in-san-fernando-bukidnon

Eloise Zomia — Wed, 01 Jul 2026 17:54:00 GMT

Eloise Zomia: Batch upload: Philippines enforcement news items (Kalinga; Bukidnon)

{{NewsItem
|date=2026-06-08
|category=Enforcement
|headline=Police and soldiers uproot 800 marijuana plants worth ₱150,000 in San Fernando, Bukidnon
|summary=In an operation conducted jointly by the 2nd Bukidnon Provincial Mobile Force Company, Regional Mobile Force Battalion 10, 1003rd Maneuver Company and the 89th Infantry Battalion of the Philippine Army on 8 June 2026, 800 fully grown cannabis plants valued at about ₱150,000 were uprooted at Sitio Salumayag, Barangay Halapitan, San Fernando, Bukidnon. The plants had been intercropped with cassava and tobacco to conceal them. Most were burned on site and samples were retained for laboratory examination. Police said efforts were under way to identify the landowner. Reported by Mel N. Velez for the Philippine Daily Inquirer on 9 June 2026.
|source=https://newsinfo.inquirer.net/2243254/authorities-uproot-800-marijuana-plants-in-bukidnon-town
|part_of_campaign=Philippines eradication campaigns (2026)
|country=Philippines
|admin1=Bukidnon
|admin2=San Fernando
|locality=Halapitan
|coordinates=7.92, 125.33
|agency=2nd Bukidnon Provincial Mobile Force Company; Regional Mobile Force Battalion 10; 1003rd Maneuver Company; 89th Infantry Battalion, Philippine Army
|plants=800
}}
<div style="display:none;">
[[Has event date::2026-06-08]]
[[Has event category::Enforcement]]
[[Has event headline::Police and soldiers uproot 800 marijuana plants worth ₱150,000 in San Fernando, Bukidnon]]
[[Has event summary::In an operation conducted jointly by the 2nd Bukidnon Provincial Mobile Force Company, Regional Mobile Force Battalion 10, 1003rd Maneuver Company and the 89th Infantry Battalion of the Philippine Army on 8 June 2026, 800 fully grown cannabis plants valued at about ₱150,000 were uprooted at Sitio Salumayag, Barangay Halapitan, San Fernando, Bukidnon. The plants had been intercropped with cassava and tobacco to conceal them. Most were burned on site and samples were retained for laboratory examination. Police said efforts were under way to identify the landowner. Reported by Mel N. Velez for the Philippine Daily Inquirer on 9 June 2026.]]
[[Has source URL::https://newsinfo.inquirer.net/2243254/authorities-uproot-800-marijuana-plants-in-bukidnon-town]]
[[Has part of campaign::Philippines eradication campaigns (2026)]]
[[Has country::Philippines]]
[[Has admin subdivision 1::Bukidnon]]
[[Has admin subdivision 2::San Fernando]]
[[Has locality::Halapitan]]
[[Has event coordinates::7.92, 125.33]]
[[Has enforcement agency::2nd Bukidnon Provincial Mobile Force Company; Regional Mobile Force Battalion 10; 1003rd Maneuver Company; 89th Infantry Battalion, Philippine Army]]
[[Has plants eradicated::800]]
</div>

News:2026-05-18/Enforcement/police-destroy-1-14-million-marijuana-plants-worth-228m-in-loccong-tinglayan

Eloise Zomia — Wed, 01 Jul 2026 17:53:59 GMT

Eloise Zomia: Batch upload: Philippines enforcement news items (Kalinga; Bukidnon)

{{NewsItem
|date=2026-05-18
|category=Enforcement
|headline=Police destroy 1.14 million marijuana plants worth ₱228M in Loccong, Tinglayan
|summary=In a two-day operation conducted by the Police Regional Office-Cordillera (PRO CAR) on 17–18 May 2026, around 1.14 million fully grown cannabis plants valued at ₱228 million were destroyed across 10 plantation sites covering about 9.5 hectares on Mt. Chumanchil, Barangay Loccong, Tinglayan, Kalinga. The report did not identify the cultivators. Reported by Harley Palangchao for The Manila Times on 21 May 2026.
|source=https://www.manilatimes.net/2026/05/21/regions/kalinga-police-destroy-p228m-worth-of-marijuana-in-major-drug-operation/2348380
|part_of_campaign=Philippines eradication campaigns (2026)
|country=Philippines
|admin1=Kalinga
|admin2=Tinglayan
|locality=Loccong
|coordinates=17.25, 121.03
|agency=Police Regional Office-Cordillera (PRO CAR)
|hectares=9.5
|plants=1140000
}}
<div style="display:none;">
[[Has event date::2026-05-18]]
[[Has event category::Enforcement]]
[[Has event headline::Police destroy 1.14 million marijuana plants worth ₱228M in Loccong, Tinglayan]]
[[Has event summary::In a two-day operation conducted by the Police Regional Office-Cordillera (PRO CAR) on 17–18 May 2026, around 1.14 million fully grown cannabis plants valued at ₱228 million were destroyed across 10 plantation sites covering about 9.5 hectares on Mt. Chumanchil, Barangay Loccong, Tinglayan, Kalinga. The report did not identify the cultivators. Reported by Harley Palangchao for The Manila Times on 21 May 2026.]]
[[Has source URL::https://www.manilatimes.net/2026/05/21/regions/kalinga-police-destroy-p228m-worth-of-marijuana-in-major-drug-operation/2348380]]
[[Has part of campaign::Philippines eradication campaigns (2026)]]
[[Has country::Philippines]]
[[Has admin subdivision 1::Kalinga]]
[[Has admin subdivision 2::Tinglayan]]
[[Has locality::Loccong]]
[[Has event coordinates::17.25, 121.03]]
[[Has enforcement agency::Police Regional Office-Cordillera (PRO CAR)]]
[[Has hectares eradicated::9.5]]
[[Has plants eradicated::1140000]]
</div>

News:2026-06-04/Enforcement/fiji-police-destroy-47-397-cannabis-plants-in-four-operations-in-cakaudrove

Eloise Zomia — Wed, 01 Jul 2026 12:54:43 GMT

Eloise Zomia: Create news item: Fiji Police report to Cakaudrove Provincial Council, four eradication operations; coordinates = Natewa Peninsula district centroid

{{NewsItem
|date=2026-06-04
|category=Enforcement
|headline=Fiji Police destroy 47,397 cannabis plants in four operations in Cakaudrove
|summary=On 4 June 2026 the Fiji Police Force reported that four coordinated operations in the Northern Division had destroyed 47,397 cannabis plants with an estimated value of FJ$47.39 million. The figures were presented to district representatives at the Cakaudrove Provincial Council meeting. The first operation destroyed 13,007 plants, the second 20,226, the third 1,332 and the fourth 12,832. Police reported 77 arrests, 23 during farm raids and 54 at roadblocks. Items seized at roadblocks included 44 sachets of dried cannabis leaves, 54 portions of loose dried leaves, 17 live rounds of ammunition and FJ$4,000 in cash, believed to be proceeds of crime. The report identified the 'Golden Triangle' as a key focus of operations. The area spans the districts of Tunuloa, Natewa, Cakaudrove Vanua, Navatu and Naweni. Police said operations remained ongoing and were focused on Salia Village, Nailou, Manuasi, Devon Kanakana and parts of Navonu. In Labasa, four people were arrested in connection with methamphetamine-related offences. Three had been charged and one case remained pending laboratory analysis. Reported by Talei Matairakula for the Fiji Sun.
|source=https://fijisun.com.fj/news/nation/police-seize-47m-worth-of-marijuana-in-north
|country=Fiji
|admin1=Northern Division
|admin2=Cakaudrove
|coordinates=-16.67, 179.75
|agency=Fiji Police Force
|plants=47397
}}
<div style="display:none;">
[[Has event date::2026-06-04]]
[[Has event category::Enforcement]]
[[Has event headline::Fiji Police destroy 47,397 cannabis plants in four operations in Cakaudrove]]
[[Has event summary::On 4 June 2026 the Fiji Police Force reported that four coordinated operations in the Northern Division had destroyed 47,397 cannabis plants with an estimated value of FJ$47.39 million. The figures were presented to district representatives at the Cakaudrove Provincial Council meeting. The first operation destroyed 13,007 plants, the second 20,226, the third 1,332 and the fourth 12,832. Police reported 77 arrests, 23 during farm raids and 54 at roadblocks. Items seized at roadblocks included 44 sachets of dried cannabis leaves, 54 portions of loose dried leaves, 17 live rounds of ammunition and FJ$4,000 in cash, believed to be proceeds of crime. The report identified the 'Golden Triangle' as a key focus of operations. The area spans the districts of Tunuloa, Natewa, Cakaudrove Vanua, Navatu and Naweni. Police said operations remained ongoing and were focused on Salia Village, Nailou, Manuasi, Devon Kanakana and parts of Navonu. In Labasa, four people were arrested in connection with methamphetamine-related offences. Three had been charged and one case remained pending laboratory analysis. Reported by Talei Matairakula for the Fiji Sun.]]
[[Has source URL::https://fijisun.com.fj/news/nation/police-seize-47m-worth-of-marijuana-in-north]]
[[Has country::Fiji]]
[[Has admin subdivision 1::Northern Division]]
[[Has admin subdivision 2::Cakaudrove]]
[[Has event coordinates::-16.67, 179.75]]
[[Has enforcement agency::Fiji Police Force]]
[[Has plants eradicated::47397]]
</div>