A medium sized tree with dark-grey bark, young parts with yellowish brown hairs. Leaves alternate, bipinnate, rachis c. 10-25 cm long having a large gland, c. 1-2.5 cm from the base; stipules 7-8 mm long, linear, caducous. Pinnae 4-15 pairs more or less sessile, 7-15 cm long; leaflets 10-30 pairs, 12-18 mm long, c. 3-7 mm wide, falcate-oblong, oblique, hairy on both the sides, acute. Inflorescence peduncled heads, solitary, or in fascicle of 2-3 arranged in terminal raceme. Pedun¬cle 3.5-7 cm long, bract c. 3-6 mm long, linear. Pedicel c. 1-2 mm long. Calyx c. 3-4 mm long, tubular, velvety or not, short toothed, triangular. Corolla 7-8 mm long hairy outside, lobes c. 2-3 mm, lanceolate, acute. Stamens 2.5-3.2 cm long staminal tubes as long as the corolla tube. Pod c. 7.5-12.5 cm long, c. 1.5-2.5 cm broad, hairy till maturation, pale brown or yellowish. Seeds 8-12.