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Landrace.wiki

The encyclopedia and open conservation database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.

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Filter by collection year, classification, priority or provenance, and select a marker for accession details. Every figure on this card describes the accessions currently shown. A further 81 documented accessions carry no coordinates yet and cannot be mapped.

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466Accessions shown

40Growing areas represented

15Growing regions represented

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39%of the accessions shown are assessed as critical or high conservation priority. Help document them

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An accession is a sample or observation recorded at a specific place and time. An appellation is a locally recognised name tied to place and tradition.

All accessionsEvery documented sample and observation

ClassificationLandrace, feral, specimen and related accession types

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Growing regionA broad ecological and cultural grouping

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Featured accessionStewart s.n., Rawalpindi (1913)

Pakistan Collected 1913 Herbarium specimen

Stewart s.n., Rawalpindi is an accession record for an unnumbered gathering of Cannabis sativa collected by R. R. Stewart at Rawalpindi in February 1913. Rawalpindi is now in Rawalpindi District, Punjab, Pakistan. The New York Botanical Garden holds the herbarium sheet as catalogue 1414430. GBIF publishes it as occurrence 1929221630.

CollectionHerbarium specimenHistorical

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Places

Featured growing regions and areas

Growing region

The Dooars

Eastern Plains

Terai belt region where traditional cannabis cultivation faces modernization pressures

Jaldapara

The Dooars

Jalpaiguri

North Bengal Plains

Ketama

Rif Mountains

Khairbari-Deogaon

The Dooars

All 15 growing regions · All 43 growing areas

Featured article

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 is normally dioecious: a crop raised from seed separates into male and female plants in roughly equal numbers. The two sexes differ in the structure of their flowers and, less sharply, in growth habit. Dioecy is the ancestral and prevailing condition in the family Cannabaceae, shared with the sister genus Humulus, the hops; a minority of cultivated hemp lines are instead monoecious, carrying both kinds of flower on one plant.

The separation of the sexes shapes how cannabis is grown and how its populations are structured. Because cannabinoids accumulate mainly in the resin of the unfertilised female inflorescence, drug-type and cannabinoid crops are grown as female-only stands. Excluding pollen is central to their cultivation, since a pollinated inflorescence sets seed in place of resin. … read more →

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Research

Venue: Health Research Policy and Systems

7 Sep 2026

Knowledge translation and evidence use in medicinal cannabis policy: An evidence brief on regulation, effectiveness, safety and stakeholder support in Colombia

A knowledge-translation study from the Unit of Evidence and Deliberation for Decision Making at the University of Antioquia in Medellín, reporting how an evidence brief on the regulation, effectiveness, safety and stakeholder support of medicinal cannabis was assembled and put before Colombia's Ministry of Health. Its interest for the corpus is procedural rather than botanical: it documents how research evidence and stakeholder opinion were marshalled into a national cannabis regulatory process, in a producer country whose policy record the wiki otherwise holds through enforcement reporting.

Source

18 Jul 2026 · Journal of Cannabis Research

Terroir-driven phenolic chemotypes and antioxidant/antimicrobial activities of Beldia (Cannabis sativa L.) seed extracts

Source

1 Jul 2026 · Plant Disease

Screening Diverse Cannabis sativa Germplasm for Resistance to Golovinomyces ambrosiae

Source

30 Jun 2026 · Acta Theologica

Cannabis Sativa, religion and society: Historical, medicinal, legal, and sacramental perspectives

Source

28 Jun 2026 · International Journal of Drug Policy

Value capture in the emerging medical cannabis global value chain: insights from South Africa