Root of Jatrorrhiza palmata (DC.) Miers (J. columba Miers), Menispermaceae. Habit. Eastern Africa. Constit. Columbin, chasmanthin, palmarin (isomer of chasmanthin), jatrorrhizine, columbic acid, columbamine; contains no tannin: Barton, Elad, J. Chem. Soc. 1956, 2085, 2090. Review: Feist, Arzneim.-Forsch. 1, 418 (1951).