The Lophophora williamsii is a small, spineless cactus native to Mexico and southern North America. It has a long story of entheogenic use and Castaneda’s books describe it as a powerful guiding spirit, named “Mescalito”, capable of terrifying and beautiful visions.

(Plantae; Magnoliophyta; Magnoliopsida; Caryophyllales; Cactaceae; Lophophora)