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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 - Mekong Basin - Khorat Plateau
NLD heartland under hybrid pressure; core accessions at risk.
Critical 0 accessions
Profile coming soon
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Cardamom Mountains
Southeast Asia - Krâvanh Mountains
Oasis agriculture with cold-night resin selection.
Critical 0 accessions
Western Himalayas
South Asia - Western Himalayas
High-elevation charas region; tourist hybrids increasing introgression risk.
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
ZOM-IND-WEB-0620250072
Jaldapara 'Hollong' General Population 2025 is a domesticate landrace cannabis accession. This accession was documented by Isabella & Éloïse in June 2025. A total of 1135 seeds were purchased by Éloïse from a local alias 'Ajay'. The seeds come from a cultivated landrace cannabis population of 100+ plants grown near Hollong village. Hollong is located in Alipurduar District, West Bengal, India, within the Jaldapara landrace cannabis growing area of The Dooars growing region.
Landrace Cannabis
Landrace cannabis is a cultivated cannabis population that has evolved over time in a specific geographic region, shaped by local environmental pressures and the selection practices of farmers. Cannabis landraces are genetically diverse and locally adapted, often valued for distinctive traits such as flavour, resilience or suitability for traditional uses.
The defining mechanism of landrace maintenance is mass selection, in which farmers save seed in bulk from open-pollinated populations rather than from individually selected plants. This sustains genetic diversity within a recognisable population while applying gradual selection pressure toward locally favoured traits. Landraces are dynamic rather than static and continue to evolve through ongoing seed exchange and occasional introgression.
Cannabis landraces face pressures distinct from most food-crop landraces. Decades of prohibition and eradication have disrupted traditional growing regions and the rapid global spread of high-yield hybrids has driven extensive genetic displacement. The most prominent documented case is the replacement of the Moroccan kif by hybrid varieties such as khardala across the Rif Mountains over the 2000s and 2010s. read more →
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2 July 2026
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N 15:45 | The African Roots of Marijuana (2019) 3 changes history +6,240 [Eloise Zomia (3×)] | |||
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15:07 (cur | prev) +6,189 Eloise Zomia talk contribs (Create book page: The African Roots of Marijuana (Duvall 2019) — via book-author pipeline) | |||
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N 15:45 | Research:2019-01-01/Journal article/a-brief-agricultural-history-of-cannabis-in-africa-from-prehistory-to-canna-colony 2 changes history +2,541 [Eloise Zomia (2×)] | |||
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15:45 (cur | prev) 0 Eloise Zomia talk contribs (Reconcile record date 2026-07-01 to 2026-07-02) | ||||
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14:19 (cur | prev) +2,541 Eloise Zomia talk contribs (Create research item (Global South leads: Rusenga et al. 2024 / Duvall 2019)) | |||
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N 15:45 | Research:2024-03-15/Journal article/business-as-usual-cannabis-legalisation-and-agrarian-change-in-zimbabwe 2 changes history +6,029 [Eloise Zomia (2×)] | |||
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15:45 (cur | prev) 0 Eloise Zomia talk contribs (Reconcile record date 2026-07-01 to 2026-07-02) | ||||
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N 15:45 | Research:2026-05-08/Journal article/genetic-architecture-of-phenological-morphological-and-phytochemical-traits-in-cannabis-landraces 2 changes history +3,005 [Eloise Zomia (2×)] | |||
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15:45 (cur | prev) 0 Eloise Zomia talk contribs (Reconcile record date 2026-07-01 to 2026-07-02) | ||||
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13:53 (cur | prev) +3,005 Eloise Zomia talk contribs (Create research item: Babaei & Torkamaneh 2026, genetic architecture of Cannabis landraces (Iran)) | |||
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