1. Plants(Common Noun) Any North-East Indian leguminous woody climbing plant of the genus Derris, esp Derris elliptica, whose roots yield the insecticide rotenone. However, Derris ferruginea species is mostly found in the evergreen forest of Upper Assam down to Darrang and Sibsagar. It yields a fair amount of rotenone up to 24 percent. Rotenone is mostly used to poison fish.

English: derris,
Karbi: hiru