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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

CountryBrowse by country of origin

Growing regionA broad ecological and cultural grouping

Growing areaA specific cultivation zone within a region

AppellationA recognised name tied to place and tradition

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Featured accessionSuvannasuddhi 457 (1940)

Thailand Collected 1940 Herbarium specimen

Suvannasuddhi 457 is a herbarium accession of Cannabis sativa collected at the Forestry School in Phrae, northern Thailand, on 1 August 1940. The Forest Herbarium (BKF) in Bangkok holds the gathering on five sheets, barcodes SN 009251, SN 009252, SN 232958, SN 232959 and SN 232960. Its catalogue files all five under accession BKF 97905 and gives the collector as Suvannasuddhi, S.

CollectionHerbarium specimenHistorical

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Places

Featured growing regions and areas

Growing region

Central Himalayas

Himalayas

Mid-to-high elevation Himalayan cultivation zone across far-western Nepal river valleys and uplands

Ketama

Rif Mountains

Khairbari-Deogaon

The Dooars

Kirivong

Southern Cambodia

Koch Bihar

North Bengal Plains

All 15 growing regions · All 43 growing areas

Featured article

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. A cultivar name pairs the botanical name with a cultivar epithet, as in Cannabis 'Finola'.

In Cannabis the cultivar sits among several overlapping ways of naming plant groups that are often confused. … 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