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Landrace.wiki
The open database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.
Landrace.wiki is the open database for landrace cannabis—populations, their genetics, and the knowledge around them. Browse documented accessions, track conservation efforts, and contribute to preserving genetic diversity before it’s lost.
Landrace Cannabis Growing Region and Accession Map
- Stable8
- Vulnerable21
- Endangered43
- Critical89
- Extinct127
Featured Growing Regions
Northeastern Thailand
Southeast Asia - Khorat Plateau
The Khorat Plateau NLD landrace growing corridor retains core Thai-stick genetics, but diversity is eroding rapidly; conservation and documentation are urgently needed.
Critical 0 accessions
Profile coming soon
Northern Laos
Southeast Asia - Lao Highlands
Rugged northern Lao highlands with NLD type landraces still in cultivation, but under intense pressure; documentation and conservation are urgent in the face of imminent extinction.
Critical 3 accessions
Western Himalayas
South Asia - Western Himalayas
Western Himalayan charas heartland where cultivation of high elevation, late-finishing NLD landraces is a part of everyday village life; law enforcement is a cat-and-mouse routine and male culling adds steady pressure. Documentation and conservation are needed.
Vulnerable 156 accessions
Featured Accessions
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We are witnessing the rapid disappearance of traditional cultivation knowledge and genetic diversity in cannabis. These landrace populations represent thousands of years of natural and human selection, containing unique genetic traits and chemical profiles. Systematic documentation and conservation efforts can serve as a bridge—preserving irreplaceable genetic heritage while supporting traditional communities and advancing our understanding of this remarkable plant.
Explore the Database
RSC-AFG-BAL-0120190001
Balkhi General Population 2019 is a landrace cannabis accession collected at point of origin by the Real Seed Company in Balkh, northern Afghanistan in 2019.
History of Medical Cannabis in Sri Lanka (Weliange 2018)
"History of Medical Cannabis in Sri Lanka" is a conference abstract by Wasantha Sena Weliange, presented at the International Conference on Cannabis and Medicinal Research held in Osaka, Japan, on 15–16 November 2018 and published in the Journal of Neurology and Neurophysiology, Volume 9. The abstract catalogues approximately 20 Ayurvedic and indigenous medical texts from Sri Lanka that mention cannabis (Sinhala: කංසා, kansā; also ගංජා, ganjā), spanning from 341 AD to 1999.
The earliest entry is the Sarartha Sangrahaya (341 AD), a medical pharmacopoeia attributed to King Buddhadasa, followed by the medieval Yogarnavaya and Prayagorathnavaliya (both 1232) and the Vaidyacintamani (1707); twentieth-century entries include the official Sri Lankan Ayurvedic Pharmacopeia (1937) and the Desheeya Guli Kalka Sagaraya (1999). The tradition continues through the Ayurvedic Drug Corporation at Navinna, which produces named cannabis-based medicines under the Ayurveda Act No. 31 of 1961; in 2023 a total of 1,261.64 kg of cannabis was consumed for Ayurvedic medicinal purposes in Sri Lanka. read more →
Encyclopedia
Latest reporting
Latest publications
Cannabis eradications
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2 July 2026
| N 00:54 | News:2026-06-08/Enforcement/police-and-soldiers-uproot-800-marijuana-plants-worth-150-000-in-san-fernando-bukidnon diffhist +2,695 Eloise Zomia talk contribs (Batch upload: Philippines enforcement news items (Kalinga; Bukidnon)) | ||||
| N 00:53 | News:2026-05-18/Enforcement/police-destroy-1-14-million-marijuana-plants-worth-228m-in-loccong-tinglayan diffhist +2,118 Eloise Zomia talk contribs (Batch upload: Philippines enforcement news items (Kalinga; Bukidnon)) | ||||
1 July 2026
| N 19:54 | News:2026-06-04/Enforcement/fiji-police-destroy-47-397-cannabis-plants-in-four-operations-in-cakaudrove diffhist +3,225 Eloise Zomia talk contribs (Create news item: Fiji Police report to Cakaudrove Provincial Council, four eradication operations; coordinates = Natewa Peninsula district centroid) | ||||
| 18:45 | News:2023-12-22/Enforcement/large-scale-ganja-farm-raided-in-yala diffhist +1 Eloise Zomia talk contribs (Migrate Has hectares destroyed -> Has hectares eradicated per schema ruling 2026-07-01) | ||||
| 18:38 | News:2026-04-29/Enforcement/aceh-police-discover-20-hectare-marijuana-plantation diffhist +31 Eloise Zomia talk contribs (Backfill enforcement SMW (agency / plants / hectares eradicated) per schema ruling 2026-07-01) | ||||
| 18:38 | News:2026-04-24/Enforcement/polda-sumsel-destroys-20-hectare-empat-lawang-cannabis-network diffhist +32 Eloise Zomia talk contribs (Backfill enforcement SMW (agency / plants / hectares eradicated) per schema ruling 2026-07-01) | ||||
| 18:38 | News:2026-04-19/Enforcement/police-destroy-60-000-marijuana-plants-along-sadanga-tinglayan-boundary diffhist +123 Eloise Zomia talk contribs (Backfill enforcement SMW (agency / plants / hectares eradicated) per schema ruling 2026-07-01) | ||||
| 18:38 | News:2026-04-19/Enforcement/police-destroy-6-000-marijuana-plants-in-loccong-tinglayan diffhist +32 Eloise Zomia talk contribs (Backfill enforcement SMW (agency / plants / hectares eradicated) per schema ruling 2026-07-01) | ||||
| 18:38 | News:2026-04-19/Enforcement/pnp-destroys-25-7m-worth-of-marijuana-in-22-cordillera-operations-13-19-april-2026 diffhist +55 Eloise Zomia talk contribs (Backfill enforcement SMW (agency / plants / hectares eradicated) per schema ruling 2026-07-01) | ||||
| 18:38 | News:2026-04-19/Enforcement/oplan-ultimate-grasscutter-destroys-6-300-marijuana-plants-across-11-sites-in-bakun-kapangan-kibungan diffhist +32 Eloise Zomia talk contribs (Backfill enforcement SMW (agency / plants / hectares eradicated) per schema ruling 2026-07-01) | ||||