Mescaline it is specifically exempt from legislation. In Canada, mescaline is classified as a schedule III drug under the Controlled Drugs and Substances Act, whereas peyote is exempt. In Russia mescaline, its derivatives and mescaline-containing plants are banned as narcotic drugs (Schedule I). Mescaline Mescaline (3,4,5-trimethoxyphenethylamine) is a naturally occurring psychedelic alkaloid of the phenethylamine class, known for its hallucinogenic effects comparable to those of LSD and psilocybin. It occurs naturally in the peyote cactus ("Lophophora williamsii"), the San Pedro cactus ("Echinopsis pachanoi"), the Peruvian torch ("Echinopsis peruviana"), and other members of the Cactaceae plant family. It is also found in
Psychoactive plant a few examples of significant psychoactive plants and their effects are shown. For further examples, see List of psychoactive plants. In the plant kingdom (Plantae), almost all psychoactive plants are found within the flowering plants (angiosperms). There are many examples of psychoactive fungi, but fungi are not part of the plant kingdom. Some important plant families containing psychoactive species are listed below. The listed species are examples only, and a family may contain more psychoactive species than listed. The active constituents of the majority of psychoactive plants fall within the alkaloids ("e.g.", nicotine, morphine, cocaine, mescaline, caffeine, ephedrine), a class