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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-0620250013

India Collected 2025 Feral Medium priority

The Haldibari 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

Northern Laos

Mekong Basin

Northern Laos landrace cannabis growing region

Gorumara

The Dooars

Jaldapara

The Dooars

Jalpaiguri

North Bengal Plains

Ketama

Rif Mountains

All 11 growing regions · All 22 growing areas

Featured article

Cannabaceae is a small family of flowering plants in the order Rosales, containing about ten genera and between approximately 117 and 170 species, with the precise count depending on the treatment of variable genera such as Trema, Parasponia and Celtis. The family includes the herbaceous genera Cannabis (hemp) and Humulus (hops), which are its most economically important members, alongside the woody genera Celtis (hackberries), Trema, Aphananthe, Chaetachme, Gironniera, Lozanella, Parasponia and Pteroceltis. It is sometimes called the hemp family.

The family is recognised in its present, expanded form only since the early 2000s. Earlier botanists placed Cannabis and Humulus variously in Urticaceae or Moraceae, and the remaining genera in a separate family Celtidaceae. Molecular phylogenetic analyses of plastid DNA in the late 1990s and early 2000s showed that Cannabis and Humulus are nested within former Celtidaceae genera, and that the combined group is best treated as a single family. Under priority rules, Cannabaceae, the older family name, was retained. … 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