Psilocybe venenata (psychoactive mushroom)
A specific species of psychoactive mushroom; the name is a technical or specialized term rather than everyday vocabulary.
Psilocybe venenata grows wild in Japan as well.
The compounds in Psilocybe venenata have hallucinogenic effects.
Alternative kanji spelling, rarely used.
The name シビレタケ literally means 'numbing mushroom', from 痺れる (shibireru, 'to become numb') and 茸 (take, 'mushroom'), referring to its psychoactive effects. The exact historical derivation is uncertain.