List of psychoactive plants
This is a list of plant species that, when consumed by humans, are known or suspected to produce psychoactive effects: changes in nervous system function that alter perception, mood, consciousness, cognition or behavior. Many of these plants are used intentionally as psychoactive drugs, for medicinal, religious, and/or recreational purposes. Some have been used ritually as entheogens for millennia. The plants are listed according to the specific psychoactive chemical substances they contain; many contain multiple known psychoactive compounds. Cannabinoids. Species of the genus "Cannabis", known colloquially as marijuana, including "Cannabis sativa" and "Cannabis indica", is a popular  psychoactive plant that is often used medically and recreationally. The principal psychoactive substance in "Cannabis", tetrahydrocannabinol (THC), contains no nitrogen, unlike many (but not all) other psychoactive substances and is not an indole, tryptamine, phenethylamine, anticholinergic (deliriant) or dissociative drug. THC is just one of more than 100 identified cannabinoid compounds in "Cannabis", which also include cannabinol (CBN) and cannabidiol (CBD). "Cannabis" plants vary widely, with different strains producing dynamic balances of cannabinoids (THC, CBD, etc.) and yielding markedly different effects. Popular strains are often hybrids of "C. sativa" and "C. indica". The medicinal effects of cannabis are widely studied , and are active topics of research both at universities and private research firms. Many jurisdictions have laws regulating or prohibiting the cultivation, sale and/or use of medical and recreational cannabis. Tryptamines. Many of the psychedelic plants contain dimethyltryptamine (DMT), or other tryptamines, which are either snorted (Virola, Yopo snuffs), vaporized, or drunk with MAOIs (Ayahuasca). It cannot simply be eaten as it is not orally active without an MAOI and it needs to be extremely concentrated to be vaporized. Acanthaceae. "Species", "Alkaloid content, where given, refers to dried material" Fabaceae (Leguminosae). 1,2,3,4-Tetrahydro-6-methoxy-2,9-dimethyl-beta-carboline, Plant, 1,2,3,4 -Tetrahydro-6-methoxy-2-methyl-beta-carboline, Plant, 5-Methoxy-N,N-dimethyltryptamine, Bark, 5-Methoxy-N-methyltryptamine, Bark, Bufotenin, plant, beans, Bufotenin N-oxide, Fruit, beans, N,N-Dimethyltryptamine-oxide, Fruit Poaceae (Gramineae). Some Graminae (grass) species contain gramine, which can cause brain damage, other organ damage, central nervous system damage and death in sheep. None of the above alkaloids are said to have been found in "Phalaris californica", "Phalaris canariensis", "Phalaris minor" and hybrids of "P. arundinacea" together with "P. aquatica". Phenethylamines. Species, Alkaloid Content (Fresh) - Alkaloid Content (Dried) Beta-carbolines. Beta-carbolines are "reversible" MAO-A inhibitors. They are  found in some plants used to make Ayahuasca. In high doses the harmala alkaloids are somewhat hallucinogenic on their own. β-carboline is a benzodiazepine receptor inverse agonist and can therefore have convulsive, anxiogenic and memory enhancing effects.