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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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ClassificationLandrace, feral, specimen and related record types

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Featured accessionRSC-MMR-SHA-0120250001

Myanmar Collected 2025 Landrace Low priority

Burmese General Population 2025 is a landrace cannabis accession sourced by the Real Seed Company, originating from Shan State, Myanmar (Burma).

PopulationGeneral populationShort-day

Recorded usesRecreation

CollectionSeedsPoint of Origin

Field cycleHarvest December–March

PreservationThe Real Seed Company

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Places

Featured growing regions and areas

Growing region

Southern Cambodia

Mekong Basin

Major landrace cannabis cultivation region spanning Cambodia's southern provinces, from the Cardamom Mountains to the Vietnamese border

Koch Bihar

North Bengal Plains

Kullu

Western Himalayas

Malana Valley

Western Himalayas

Mekliganj

The Dooars

All 11 growing regions · All 22 growing areas

Featured article

The Thalpathe Piliyam (තල්පත් පිළියම්, "Palm-leaf Remedies") is a twenty-one-volume compilation of traditional medical formulae published by the Department of Ayurveda of the Government of Sri Lanka, beginning in 1992. The series transcribes and organises drug formulations recorded on ola leaf (palm-leaf) manuscripts donated by families of traditional medicine practitioners. Twenty volumes are in Sinhala; the twenty-first is in Tamil. The first volume was published with financial and technical support from the World Health Organization.

The series is the largest published collection of Sri Lankan indigenous medical formulae{{cn|reason=was cited to an unwritten 2026 field report; needs a published source}} and contains at least 267 formulations that include Cannabis sativa as a measured ingredient, with a further 13 using it as a grinding medium. These formulations treat conditions across the gastrointestinal, nervous, circulatory, reproductive and respiratory systems, prepared most commonly as pills (guli), pastes (kalka) and decoctions (kashaya). … 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