Peyote is a small, button shaped cactus native to Mexico and southern parts of the United States. Potent compounds in peyote, such as mescaline, cause it to have a hallucinogenic effect in humans.

HEBBRONVILLE, Texas (AP) — In this corner of southern Texas, the plump cacti seem to pop out of arid dust and cracked earth, like magic dumplings. It’s only here and in northern Mexico that the bluish ...