Dried root of Smilax aristolochiaefolia Mill. (S. medica Cham. & Schlecht.) (Mexican Sarsap.), or S. regelii Killip & Morton (S. ornata Hook f.) (Jamaica or Central American Sarsap.), Liliaceae. Habit. Honduras, Jamaica, Mexico (Vera Cruz), Brazil, Guatemala. Constit. Sarsaponin, smilacin (parillin), paroaparic acid, resin, volatile oil.