Main Page

Landrace.wiki

A neutral, independent encyclopedia and open conservation database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.

Search accessions, places, topics or sources

Advanced searchHow to query the database

Conservation status

Select a marker for accession details; growing-area and appellation boundaries appear as you zoom.

Browse as a list

Critical 78High 108Medium 175Low 33Not yet assessed 9

Interactive map of documented accessions. It is unavailable here; browse the accession list instead.

403Landrace accessions

22Growing areas

11Growing regions

Conservation priority

46%of documented landrace accessions are assessed as critical or high conservation priority. Help document them

Browse

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.

All accessionsEvery documented sample and observation

ClassificationLandrace, feral, specimen and related record types

CountryBrowse by country of origin

Growing regionA broad ecological and cultural grouping

Growing areaA specific cultivation zone within a region

AppellationA recognised name tied to place and tradition

ElevationCompare records by elevation range

Conservation statusFind populations by conservation priority

Query builderHow to query

Featured accessionZOM-THA-PHU-0120250004

Thailand Collected 2025 Landrace High priority

Khun Aek Farm General Population 2024 is a domesticate landrace cannabis accession collected by Isabella of the Zomia Collective in Sakhon Nakhon Province, Thailand.

PopulationGeneral populationMonoeciousShort-day

Recorded usesRecreation, Medicine, Food

CollectionSeedsPoint of Origin2025

Field cyclePlant July–SeptemberHarvest December–March

PreservationZomia Genetic Library

View accession

Places

Featured growing regions and areas

Growing region

Northern Laos

Mekong Basin

Northern Laos landrace cannabis growing region

Malana Valley

Western Himalayas

Mekliganj

The Dooars

Parvati Valley

Western Himalayas

Phu Phan

Northeastern Thailand

All 11 growing regions · All 22 growing areas

Featured article

The Indian Hemp Drugs Commission (IHDC) was a body appointed by the Government of India in 1893 to inquire into the cultivation of cannabis, the manufacture of and trade in its products, the social and moral effects of their consumption, and the desirability of prohibition. Its findings were published in 1894 as a Report of seven volumes and a supplementary volume, running to some 3,281 pages. The commission examined 1,193 witnesses across eight provinces and Burma and concluded that the moderate use of cannabis was practically harmless and that prohibition was neither necessary nor expedient. It remains the most extensive single inquiry into cannabis undertaken in the nineteenth century, and its volumes are a principal documentary record of the plant's varieties, regional cultivation and ritual use in British India before prohibition.

The commission and its sources used the term hemp drugs for the cannabis preparations then in use, chiefly bhang, ganja and charas. … read more →

Show anotherBrowse all articles

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