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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

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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.

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Featured accessionZOM-IND-WEB-0620250026

India Collected 2025 Feral Medium priority

The Chapramari 'Sipchu Lemon' Feral Selection 2025 is a feral landrace cannabis accession collected by Isabella and Eloise 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 Laos

Mekong Basin

Southern Laos landrace cannabis growing region

Ketama

Rif Mountains

Khairbari-Deogaon

The Dooars

Kirivong

Southern Cambodia

Koch Bihar

North Bengal Plains

All 11 growing regions · All 22 growing areas

Featured article

The history of cannabis in Cooch Behar State covers the cultivation, consumption, trade and regulation of cannabis in the princely state of Cooch Behar, a feudatory state of British India in the north Bengal sub-Himalaya, from the later nineteenth century until the state's merger into West Bengal in 1950. The state regulated cannabis under its own Cooch Behar Excise Act of 1878, operating a licensed excise system that drew its structure from the Bengal Presidency model but distributed ganja through state-run warehouses, the golahs, rather than through the caste-managed contractor system used in the directly administered districts.

Cannabis grew wild across the territory as a weed of the sub-Himalayan belt, and ganja and bhang were in customary use among the Rajbanshi cultivating community and the Bengali Muslim settlers of the southern parganas. Commercial cultivation was prohibited within the state, which procured its ganja by import from the Bengal Presidency Ganja Mahal in neighbouring Rajshahi and issued it for retail from the sub-divisional golahs. … 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