Ethnomedical, Botanical and Phytochemical Aspects of Natural Hallucinogens
Botanical Museum leaflets Harvard University June 1, 1980 Richard Evans Schultes, Norman R. Farnsworth 23 citations
Over 200 plant species and numerous basidiomycetes have been reported as hallucinogenic or euphoriant, but only a few have been scientifically confirmed. This review catalogs plants with a proven hallucinogenic effect in humans or strong ethnobotanical evidence, while also listing unsubstantiated reports to encourage further study. Hallucinogenic higher plants span 146 genera across over 50 families, and their active constituents are chemically unique to each genus or close relatives. Notably, only two species—Cannabis sativa and Tabernanthe iboga—are federally prohibited in the United States, with a few others restricted in certain states.