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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

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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 accessionRSC-PAK-KHY-0120210001

Pakistan Collected 2021 Landrace High priority

Chitrali General Population 2021 is a domesticate landrace cannabis accession sourced by Angus of The Real Seed Company from Upper Chitral, Pakistan.

PopulationGeneral populationShort-day

Recorded usesRecreation

CollectionSeedsPoint of Origin2021

Field cycleHarvest October–November

PreservationThe Real Seed Company

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Places

Featured growing regions and areas

Growing region

Southern Laos

Mekong Basin

Southern Laos landrace cannabis growing region

Kullu

Western Himalayas

Malana Valley

Western Himalayas

Mekliganj

The Dooars

Parvati Valley

Western Himalayas

All 11 growing regions · All 22 growing areas

Featured article

Trichome biology is the study of the trichomes of Cannabis: the epidermal hairs and glands that cover much of the plant and that produce and hold almost all of its cannabinoids and terpenes. Two broad classes occur on cannabis. Non-glandular covering trichomes are simple protective hairs, many of them stiffened by a calcium carbonate cystolith at the base; glandular trichomes are secretory structures whose cells make a resin rich in cannabinoids and terpenoids and secrete it into a cavity beneath the cuticle.

The glandular trichomes borne on the female inflorescence are where cannabis concentrates its resin, and their number, size and metabolite content largely set the cannabinoid and terpene profile of the mature flower. … 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