The vegetable drug Taiuia is used by the pharmaceutical industries of the state Rio Grande do Sul and the original plant is assigned to Coyaponia tayuya (Vell.) Cogn. The chromatographic analysis of two commercial samples supplied by the industry showed to be Wilbrandia ebracteata Cogn.
medicinal plant drug; taiuia; Coyaponia tayuya (Vell.) Cogn; Wilbrandia ebracteata Cogn