Dalbergia robusta Roxb. ex DC.
Deguelia robusta (Roxb. ex DC.)Taub.
Family: Fabaceae - Pea family
Growth Habit: Climber
Bangla/Vernacular Name: Koroi, Jangaria, Jumurja, Jamurja (Chittagong), Miringa (Sylhet)
Tribal Name: Dumurjja (Chakma), Gumbong (Murang), Bol-kakharu; Bol-tara (Garo), Gung ba (Marma)
A large woody climbing shrub. Leaves imparipinnate; leaflets elliptic-oblong, slightly emarginate at apex. Flowers pinkish-white, in axillary racemes. Pods elliptic.
Seed shell contains chalcone rubone; isoflavone derrugenin; rubustigenin, its 5-Me ether; derrusnin, methyl ethers of robustone and robustin, alpinum, isoflavone di-Me-ether, ß-sitosterol & its glucosides; 5-OH-7-OMe-isoflavone; derrone, its Me-ether. Roots contain 4 isoflavones, derrustone, derrubone, robustone and its Me ether, and 5 coumarins, derrusnin, robustic acid and their Me esters (Asolkar et al., 1992). 5-hydroxy-7-methoxyisoflavone has been isolated from seeds (Rastogi & Mehrotra, 1993).
Derris robusta Benth.
Forests of Chittagong, Chittagong Hill Tracts, Cox's Bazar, Sylhet, usually on dry hill slopes.