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Landrace.wiki

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

A cannabis plant in flower photographed close up, its leaves and bracts sharp against a blurred green hillside
Picture of the day
Landrace cannabis cultivated by locals in the village fields of Atolang.
Atolang (appellation) · Éloïse, 13 October 2022 · About this photograph

Accession Map

Filter by collection year, classification, priority or provenance, and select a marker for accession details. Every figure on this card describes the accessions currently shown. A further 448 documented accessions carry no coordinates yet and cannot be mapped.

Interactive map of documented accessions. It is unavailable here; browse the accession list instead.
Conservation priority
21%of the accessions shown are assessed as critical or high conservation priority. Help document them
Places
Growing region
North Bengal Plains
Eastern Plains
Alluvial Himalayan foothill plains across Alipurduar, Cooch Behar, and Jalpaiguri districts
Cardamom Mountains
Southern Cambodia
Chamurchi-Laxmi Duar
The Dooars
Chapramari
The Dooars
Gorumara
The Dooars
Research

Latest publications

Venue: Agriculture and Natural Resources
30 Sep 2026
Compares selfing with intercrossing for producing feminized seed from two Thai landrace accessions of Hang Kra Rok cannabis, one from Bangkok and one from Sakon Nakhon. Female cuttings were treated with colloidal silver to induce male flowers, and the progeny were grown in a plant factory with artificial lighting. Both selfed lines and the Sakon Nakhon by Bangkok cross gave 100% female plants, while the reciprocal cross produced one hermaphrodite (5.6%). Dry inflorescence weight did not differ between treatments, and the Bangkok selfed line had the highest THC content at 6.58%. The plants were grown under artificial light, so the chemistry is not field chemistry.
Map of reported cannabis events. The interactive map is unavailable here; see the current events portal instead.
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