Visionary Cacti
Many if not all species of cacti have psychoactive alkaloids in them, some, however are in too small of dosages to be much use. One of the less commonly known is the Mammillaria species. It produces intoxination and when sleeping one has vivid dreams. Seeds of Mammillaria Magnifica will be available this summer.

Peyote is a more common kind of visionary cactus altho hard to come by in the underground market because it can take up to 20 years to reach maturity.
Mammillaria Sheldonii
Lophophora Williamsii - Peyote