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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-HIM-1020250021

India Collected 2025 Landrace Medium priority

Atolang General Population 2025 is a domesticate landrace cannabis accession collected by Éloïse and Gaetan of the Zomia Collective in Himachal Pradesh, India.

PopulationGeneral populationDioeciousShort-day

Recorded usesMultipurpose

CollectionSeedsPoint of Origin2025

Field cyclePlant March–MayHarvest September–December

PreservationZomia Genetic Library

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Places

Featured growing regions and areas

Growing region

Eastern Himalayas

Himalayas

Monsoon-fed Himalayan cultivation zone spanning the eastern arc from Darjeeling–Sikkim into Arunachal uplands

Cardamom Mountains

Southern Cambodia

Chamurchi-Laxmi Duar

The Dooars

Chapramari

The Dooars

Gorumara

The Dooars

All 11 growing regions · All 22 growing areas

Bengal District Gazetteers: Rajshahi (1916)

Featured article

The Bengal District Gazetteers: Rajshahi is a district gazetteer compiled by the Indian Civil Service officer L. S. S. O'Malley and published at Calcutta in 1916. It is one of the revised Bengal District Gazetteers, the standardised provincial reference series issued under the authority of the Government of Bengal. The volume describes Rajshahi, a district of the Rajshahi Division of Bengal Presidency on the right bank of the Padma; the district lay in eastern Bengal at the time of writing and today forms part of Bangladesh.

Unlike most of the series, the volume is a cultivation source of the first rank. Rajshahi contained the ganja mahal, the Government-supervised tract in the Naogaon subdivision that was the licensed source of ganja for the greater part of British India, and O'Malley gives it a chapter of its own (ch. XII, "The Ganja Mahal," pp. 134–144). That chapter is the volume's principal cannabis content; shorter references occur in the excise subsection of the General Administration chapter (pp. 132–133), in the account of the district's people (a ganja-using religious sect, p. … 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