San Pedro Cactus
San Pedro cactus contains mescaline which is illegal in most countries when isolated. This is the same active substance in the peyote cactus which can only be used legally by some native American tribes which have a history of using the plant. San Pedro can be bought and sold and the tissues can also be bought (primary container) from online shops. In many countries, however, it is a serious crime to buy, sell or consume the cactus for reasons of intoxication (any other reason besides ornamental use), because the active ingredient in the cactus, mescaline, is a scheduled substance in those countries.
Peruvian torch and Peyote are both very similar to San Pedro, both being cacti that contain mescaline, and are used as entheogens.
Read more about this topic: Legal Intoxicant, Psychedelics