Another plant that is a reported hallucinogen is Peganum harmala (syrian rue), which contains harmine and harmline it may grow wild in the south and northwest.

Hyoscyamus niger L. which has been used in chinese herbals and is considered poisonous producing madness. So the seeds have to be treated properly to use as an herbal. "The seeds when properly prepared for a prolonged period enable one to walk long distances, benefit the mind and bring strength... and to communicate with spirits and see devils."

That what the U.S. doesn't respect is the use of drugs to communicate with spirits. It is seen as ignorance and superstition and this belief stems from Christianity.