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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
<a href="/wiki/Conservation_Dashboard" style="display: inline-block; padding: 10px 18px; background: #2d5016; color: white; text-decoration: none; border-radius: 25px; font-weight: 600;">Open dashboard</a> <a href="/wiki/Growing_regions" style="display: inline-block; padding: 10px 18px; background: white; color: #2d5016; text-decoration: none; border-radius: 25px; border: 1px solid #ccc; font-weight: 600;">Browse regions</a> <a href="/wiki/Accessions" style="display: inline-block; padding: 10px 18px; background: white; color: #2d5016; text-decoration: none; border-radius: 25px; border: 1px solid #ccc; font-weight: 600;">Browse accessions</a> <a href="/wiki/Help:Documenting_accessions" style="display: inline-block; padding: 10px 18px; background: white; color: #2d5016; text-decoration: none; border-radius: 25px; border: 1px solid #ccc; font-weight: 600;">Contribute data</a>
Featured Growing Regions
Khorat Plateau
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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Balkh Oasis
South Asia → Hindu Kush–Himalayan
Oasis agriculture with cold-night resin selection.
Endangered 0 accessions
Profile coming soon
No image
Malana
South Asia → Hindu Kush–Himalayan
High-elevation charas region; tourist hybrids increasing introgression risk.
Vulnerable 0 accessions
Profile coming soon
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-LAO-LUA-112023001
Nong Khiaw General Population 2023 is a landrace cannabis accession documented by the Zomia Collective in India.
Pharmakologisch-medicinische Studien über den Hanf (1856)
The Pharmakologisch-medicinische Studien über den Hanf ("Pharmacological-Medical Studies on Hemp") is the inaugural dissertation of Dr. Georg Martius of Erlangen, published in Leipzig by Leopold Voss in 1856. The work surveys the hemp plant across four domains: history, botany, pharmacognosy and chemistry. It includes a chronological bibliography of approximately 200 pre-1856 references on cannabis spanning three centuries and is one of the earliest German academic works to treat the subject systematically.
On the question of whether Indian hemp constitutes a separate species, Martius sides with Kaempfer, Willdenow and Roxburgh against Lamarck. He synthesises Alexander Christison's 1849–1851 Edinburgh grow-out experiments, which produced taller plants with narrower leaf segments but no visible resin, to argue that resin production reflects climatic expression rather than fixed botanical distinction.
The dissertation was partly enabled by a shipment of fresh hashish from Dr. Steege, a court pharmacist (Hofapotheker) in Bucharest. Martius also acknowledges Prof. von Gorup-Besanez for supervising the chemical work and Prof. Schnizlein for botanical guidance. read more →
Encyclopedia
Latest reporting
Latest publications
Cannabis eradications
Recent updates
List of abbreviations:
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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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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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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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