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Landrace.wiki

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

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Critical 78High 108Medium 175Low 33Not yet assessed 9

Interactive map of documented accessions. It is unavailable here; browse the accession list instead.

403Landrace accessions

22Growing areas

11Growing regions

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46%of documented landrace accessions 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 record types

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Growing regionA broad ecological and cultural grouping

Growing areaA specific cultivation zone within a region

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Featured accessionZOM-IND-WEB-0620250030

India Collected 2025 Feral Medium priority

The Upper Suruk Feral Selection 2025 is a feral landrace cannabis accession collected by Isabella and Éloïse of the Zomia Collective in West Bengal, India.

PopulationSelectionDioeciousShort-day

CollectionSeedsPoint of Origin2025

PreservationZomia Genetic Library

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Places

Featured growing regions and areas

Growing region

Southern Thailand

Malay Peninsula

Landrace growing region on Thailand's Malay peninsula, centred on the Tenasserim Hills.

Khairbari-Deogaon

The Dooars

Kirivong

Southern Cambodia

Koch Bihar

North Bengal Plains

Kullu

Western Himalayas

All 11 growing regions · All 22 growing areas

Featured article

Cannabis in Khmer culture covers the place of cannabis (Khmer: កញ្ឆា, kanhchhā) in Cambodian society. The plant has long served as a culinary herb, a household remedy and an occasional recreational substance, with meanings that have shifted significantly under twentieth-century drug policy, the Khmer Rouge period, post-conflict reconstruction and the eradication campaigns that have run intermittently since 1996 and intensively since 2017.

Two dedicated articles cover the culinary and medicinal threads in detail: Cannabis in Khmer Cuisine and Cannabis in Khmer Medicine. This page is the cultural overview that situates them and traces the recent shifts in tolerance, enforcement and market structure that bear on traditional use. read more →

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Research

18 Jul 2026 · Journal of Cannabis Research

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

Abstract Geographical variation in the phenolic composition and bioactivity of Moroccan Beldia (Cannabis sativa L.) seeds remains insufficiently characterized, limiting their rational valorization as bioactive resources. This study investigated aqueous extracts from defatted seeds collected in Ketama, Taounate, and Ouazzane using HPLC–DAD phenolic profiling, antioxidant and antimicrobial assays, and molecular docking. Data are reported as mean ± SD (n = 3), and regional differences were evaluated by one-way ANOVA followed by Tukey’s test when applicable. Clear regional discrimination was observed. Ouazzane gave the highest extraction yield (8.08 ± 0.24%), total phenolic content (16.13 ± 0.48 mg GAE/100 g DM), total flavonoid content (6.78 ± 0.20 mg QE/100 g DM), and total antioxidant capacity (565.80 ± 5.90 mg AAE/g), whereas Ketama showed the strongest DPPH scavenging activity (IC₅₀ = 10.25 ± 0.03 µg/mL). HPLC–DAD revealed distinct chemotypes dominated by 4-hydroxybenzoic acid (33.26–36.63%), with Taounate enriched in vanillic acid (35.00%) and caffeic acid (20.44%). Antimicrobial assays showed the best MIC values against Micrococcus luteus (0.50 ± 0.01 mg/mL) and Geotrichum candidum (0.12 ± 0.00 mg/mL). Docking highlighted flavonoid-type constituents as the most plausible active contributors, with catechin hydrate and rutin showing the strongest affinity toward CYP51 (-9.6 kcal/mol). Moroccan terroir strongly shapes the functional profile of Beldia seed extracts and supports region-guided sourcing for future bioactive applications.

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

Source

19 Jun 2026 · bioRxiv

Sex chromosome-aware GWAS reveals XY-linked agronomic architecture and breeding targets in cannabis