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A neutral, independent encyclopedia and open conservation database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.

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Critical 78High 108Medium 175Low 33Not yet assessed 9

Interactive map of documented accessions. It is unavailable here; browse the accession list instead.

403Landrace accessions

22Growing areas

11Growing regions

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46%of documented landrace accessions are assessed as critical or high conservation priority. Help document them

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An accession is a sample or observation recorded at a specific place and time. An appellation is a locally recognised name tied to place and tradition.

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Featured accessionRSC-GRC-ARC-0120050001

Greece Collected 2005 Landrace IBL Low priority

Arcadian is a landrace cannabis accession reproduced by the The Real Seed Company, originally collected by Delicorganic around Mantineia, Arcadia, Greece in 2005.

PopulationReproductionDioeciousShort-day

Recorded usesRecreation

CollectionSeedsMulti-generation reproduction

Field cycleHarvest Early October–Mid October

PreservationThe Real Seed Company

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Places

Featured growing regions and areas

Growing region

Eastern Himalayas

Himalayas

Monsoon-fed Himalayan cultivation zone spanning the eastern arc from Darjeeling–Sikkim into Arunachal uplands

Jaldapara

The Dooars

Jalpaiguri

North Bengal Plains

Ketama

Rif Mountains

Khairbari-Deogaon

The Dooars

All 11 growing regions · All 22 growing areas

Featured article

The Santal (also Santhal; endonym Hor, "human being", or Hor hopon, "children of humankind") are a Munda-speaking Adivasi people of the eastern Indian subcontinent. They are the third most populous Scheduled Tribe in India after the Bhil and the Gond, and the most numerous of the Munda-speaking peoples. The 2011 Census of India recorded 6,570,807 Santals holding Scheduled Tribe status across five states, the largest concentrations being in Jharkhand and West Bengal; further communities live in Bangladesh and Nepal. They speak Santali, the most widely spoken language of the Munda subfamily, written since the early 20th century in the indigenous Ol Chiki script. … read more →

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Research

18 Jul 2026 · Journal of Cannabis Research

Terroir-driven phenolic chemotypes and antioxidant/antimicrobial activities of Beldia (Cannabis sativa L.) seed extracts

Abstract Geographical variation in the phenolic composition and bioactivity of Moroccan Beldia (Cannabis sativa L.) seeds remains insufficiently characterized, limiting their rational valorization as bioactive resources. This study investigated aqueous extracts from defatted seeds collected in Ketama, Taounate, and Ouazzane using HPLC–DAD phenolic profiling, antioxidant and antimicrobial assays, and molecular docking. Data are reported as mean ± SD (n = 3), and regional differences were evaluated by one-way ANOVA followed by Tukey’s test when applicable. Clear regional discrimination was observed. Ouazzane gave the highest extraction yield (8.08 ± 0.24%), total phenolic content (16.13 ± 0.48 mg GAE/100 g DM), total flavonoid content (6.78 ± 0.20 mg QE/100 g DM), and total antioxidant capacity (565.80 ± 5.90 mg AAE/g), whereas Ketama showed the strongest DPPH scavenging activity (IC₅₀ = 10.25 ± 0.03 µg/mL). HPLC–DAD revealed distinct chemotypes dominated by 4-hydroxybenzoic acid (33.26–36.63%), with Taounate enriched in vanillic acid (35.00%) and caffeic acid (20.44%). Antimicrobial assays showed the best MIC values against Micrococcus luteus (0.50 ± 0.01 mg/mL) and Geotrichum candidum (0.12 ± 0.00 mg/mL). Docking highlighted flavonoid-type constituents as the most plausible active contributors, with catechin hydrate and rutin showing the strongest affinity toward CYP51 (-9.6 kcal/mol). Moroccan terroir strongly shapes the functional profile of Beldia seed extracts and supports region-guided sourcing for future bioactive applications.

Source

1 Jul 2026 · Plant Disease

Screening Diverse Cannabis sativa Germplasm for Resistance to Golovinomyces ambrosiae

Source

30 Jun 2026 · Acta Theologica

Cannabis Sativa, religion and society: Historical, medicinal, legal, and sacramental perspectives

Source

28 Jun 2026 · International Journal of Drug Policy

Value capture in the emerging medical cannabis global value chain: insights from South Africa

Source

19 Jun 2026 · bioRxiv

Sex chromosome-aware GWAS reveals XY-linked agronomic architecture and breeding targets in cannabis