- Cannabis sativa L. - Section from the 1983 Handbook of Energy Crops covers the uses, description, germplasm, distribution, ecology, cultivation, harvesting, and other aspects of hemp and its production. Includes references.
www.hort.purdue.edu/newcrop/duke_energy/Cannabis_sativa.html
- Cannabis sativa L. - Image from Köhler's Medicinal Plants.
www.mobot.org/MOBOT/research/library/kohler/1763_013.jpg
- Cannabis sativa L. - Image from Botanical Department - University of Catania.
www.dipbot.unict.it/orto/1037-1.html
- Cannabis sativa L. - Approved Cultivars - Health Canada - Therapeutic Products Programme, Industrial Hemp regulations, List of Approved Cultivars for the 2001 Growing Season.
www.hc-sc.gc.ca/hpb-dgps/therapeut/zfiles/english/hemp/cultivar_e.html
- Ethnobotanical Leaflets - Cannabis: The Hemp Plant - A publication of Southern Illinois University Herbarium by Ernest G. Walker, Jr. on Cannabis sativa, Cannabis indica, and Cannabis ruderalis. With references.
www.siu.edu/~ebl/leaflets/hemp.htm
- Plant Profile for CASA3 - USDA, Natural Resources Conservation Service, Plants Profile. Has links to related web sites.
plants.usda.gov/plants/cgi_bin/plant_profile.cgi?symbol=CASA3
- Wisconsin Vascular Plants: Species Details - Cannabis sativa L. hemp, Indian hemp.
wiscinfo.doit.wisc.edu/herbarium/scripts/detail.asp?SpCode=CANSAT
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