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Landrace.wiki
The open database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.
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This comprehensive wiki is maintained by researchers, cultivators, and conservationists dedicated to preserving traditional cannabis knowledge. We document landrace genetics, cultivation practices, and preservation efforts across Asia and globally. We welcome contributions from the community, simply create a login to make edits or contact us through our project page to collaborate.
We are witnessing the rapid disappearance of traditional cultivation knowledge and genetic diversity in cannabis. Globalization has led to the dominance of commercial hybrid strains, while ancient regional varieties face extinction. These landrace populations represent thousands of years of natural and human selection, containing unique genetic traits and chemical profiles. In this critical moment, could systematic documentation and conservation efforts serve as a bridge—preserving irreplaceable genetic heritage while supporting traditional communities and advancing our understanding of this remarkable plant?
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5 July 2026
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08:50 | Phylogenetics of Cannabis 3 changes history −1,202 [Eloise Zomia (3×)] | |||
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08:50 (cur | prev) −276 Eloise Zomia talk contribs | ||||
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08:42 (cur | prev) −478 Eloise Zomia talk contribs (→Domestication and evolutionary history) | ||||
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08:36 (cur | prev) −448 Eloise Zomia talk contribs (→Gene pools and intraspecific structure) | ||||
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08:50 | (Upload log) [Eloise Zomia (3×)] | |||
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08:50 Eloise Zomia talk contribs uploaded File:Cannabis-phylogeny-cladogram.jpg (A cladogram showing Cannabis and Humulus as sister genera in a clade nested among the woody genera of the family Cannabaceae.) | ||||
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08:45 Eloise Zomia talk contribs uploaded File:Cannabis-genetic-structure.jpg (Demographic history of C. sativa and selection signatures identified from comparison between hemp- and drug-type cultivars. (A) Demographic history inferred from the PSMC method (30). (B) Graphical summary of the best-fitting demographic model inferred by fastsimcoal2 (65). Widths show the relative effective population sizes (Ne). Arrows and figures at the arrows indicate the average number of migrants per generation among different groups. The point estimates and 95% confidence intervals of...) | ||||
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08:42 Eloise Zomia talk contribs uploaded File:Cannabis-domestication-origin.jpg (Population structure of Cannabis accessions. (A) Geographic distribution (i.e., sampling sites of feral plants or country of origin of landraces and cultivars) of the samples analyzed in this study. Color codes correspond to the four groups obtained in the phylogenetic analysis and shapes indicate domestication types. The two empty red squares symbolize drug-type cultivars obtained from commercial stores located in Europe and the United States. For sample codes, see table S1. (B) Maximum lik...) | ||||
| 08:45 | File:Cannabis-genetic-structure.jpg diffhist +29 Eloise Zomia talk contribs | ||||
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08:40 | Phenotypic plasticity 2 changes history +17 [Eloise Zomia (2×)] | |||
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08:40 (cur | prev) +10 Eloise Zomia talk contribs (Externalise method links (common-garden, GWAS) to Wikipedia interwiki per concept-vs-technique rule) | ||||
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08:40 (cur | prev) +7 Eloise Zomia talk contribs (Externalise method links (common-garden, GWAS) to Wikipedia interwiki per concept-vs-technique rule) | ||||
| 08:27 | Trichome biology diffhist +10 Eloise Zomia talk contribs (Externalise general-method links (microscopy, SEM, proteomics, transcriptomics, deep learning) to Wikipedia interwiki) | ||||
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On the wiki
Cannabis Botany – Understanding plant structure and genetics
Southeast Asia – Comprehensive regional cultivation guide
Traditional Methods – Time-tested growing techniques
Conservation Status – Current preservation efforts