The principal narcotic plants and stimulants of ancient America were tobacco, cohoba, the red bean, peyotl, ololiuhqui, jimson weed, huaca-cachu (a tree Datura), coca, aya-huasca, yerba-mate, cassine, guarana, and cacao. Divine attributes were ascribed to them. They were used in divination, in medicine, and in ceremonioals , and in many cases, were carried by the Indians as safeguards or amulets to insure success in warfare and the chase.