Descriptions : Herb Perennial herbs:50-100 cm tall, young part hairy. Leaves: tri-foliate, stipulate, alternate. Leaflet petiolulate 0.4-1.6 cm, stipellate, ovate, cordate, apex acute, entire, 2-8 x 1.5-3 cm. Inflorescence racemose, terminal, 20-35 cm long, Flower: pedicel 1-2 mm long, bracteate, 3.5 mm, perfect. Sepals 5, synsepalous, tubular, green. Petals 5, polypetalous, papilionaceous; banner green-scarlet, 10-12 mm wide emarginate, wings; ovate scarlet, 11-13 mm x 10-12 mm, keels 2, tubular, enclosing the inner part(stamen and pistil), white-green. Stamens 9+1, diadelphous, filament 7-10 mm long curved white. Ovary simple,superior 4-6 mm long, 1 carpel, 1 locule, green, hairy, stigma capitate, parietal placentation. Fruit a legume, cylindrical, pointed downward, diameter 2-4 mm, length 7-10 cm. Seeds 10-15, cylindrecal, 2-2.5 mm x 3-4 mm.