Beside the well-known Magic Mushrooms and LSD there are several psychedelic cacti. The usage of these mescaline cacti dates back to 1400 B.C. and is still very popular among psychonauts and mental travelers. Peyote (Lophophora Williamsii), San Pedro (Trichocereus pachanoi) and Peruvian Torch (Trichocereus peruvianus) are all sacred cacti which contain mescaline. Mescaline is a psychoactive substance which causes strong hallucinations and heavily alters the user’s perspective.