Polytrias indica (Houtt.) Veldkamp Polytrias indica (Houtt.) Veldkamp in Blumea 36: 180. 1991 sec. The Plant List 2013=Ischaemum indicum (Houtt.) Merr. in J. Arnold Arbor. 19(4): 320. 1938 syn. sec. The Plant List 2013