Yerba Mate

Yerba mate is an evergreen shrub or tree of the holly family, Aquifoliaceae, whose leaves are steeped in hot water to make the drink mate. Wikipedia says the Guarani and some Tupi communities first cultivated it, that it is drunk across central and southern South America, and that the leaves contain caffeine. Cunningham calls it masculine and lists fidelity, love and lust. He says it is worn to attract the opposite sex, that the infusion is a lust potion that keeps a couple together, and that spilling it on the ground breaks a relationship. Kynes has no entry for it. The American Herbal Products Association names the leaf as the part it covers and records cautions about caffeine and about cancer risk with very hot mate, set out in the safety notes.