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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 dense stand of cannabis plants seen from directly above, bordered by forest
Picture of the day
The Lin Pooh family plot of landrace cannabis, seen from above.
ZOM-THA-PHU-1220240001 · Éloïse, 1 December 2024 · About this photograph

Accession Map

Filter by collection year, classification, seed lot, sourcing type or provenance evidence, and select a marker for accession details. Every figure on this card describes the accessions currently shown. A further 449 documented accessions carry no coordinates yet and cannot be mapped.

Interactive map of documented accessions. It is unavailable here; browse the accession list instead.
Seed lot status
UrgentAt riskSecureHeld in a genebank, not distributedNo data yet, or too little to rateWhat these mean
365of the 964 accessions on this map have a seed lot rated Urgent. See which populations to grow out first
Places
Growing region
Southern Thailand
Malay Peninsula
Cannabis growing region in southern Thailand, on the Malay Peninsula south of Prachuap Khiri Khan
Malana Valley
Western Himalayas
Parvati Valley
Western Himalayas
Phu Phan
Northeastern Thailand
Radom
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.
Activity

Recently updated

24 Oct 2026Fatehgarh
24 Oct 2026Upper Doab
24 Oct 2026Pishin
24 Oct 2026Kashmir Valley
24 Oct 2026Qila Abdullah
24 Oct 2026Bhimbar
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Learn what an accession is, how to read its fields and maps, and what the status of its seed lot means.

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