A large polygamous tree, upto 30 m high or more. Leaves large, 30-40 cm or more long. Leaflets upto 12 cm long, 2.5-4 cm broad, alternate, ovate-lanceolate, usually cordate at base, glabrous except the veins and midrib near the base, with 2-4 coarse teeth, each with a large gland beneath, margin almost entire. Petiolules 2-10 mm long; midrib prominent. Inflorescence panicle, 10-30 cm long. Bracts minute. Flowers c. 7.0 mm across. Calyx 5-lobed, unequal, sepals much smaller than petals, c. 1 mm long and 0.5 mm broad, valvate, joined at the base, margin serrulate, glabrous, ovate, acuminate. Petals spreading, c.3 x 1.5 mm, glabrous, hairy at the base. Staminate flower with 10 stamens, filaments c. 3 mm long, arising from the base of small 10- lobed disc; anthers 2-celled, dehiscing longitudinally. Pistillate flower: ovary deeply divided, ovule solitary in each cell. Fruit samara, 3.5-5 cm long, twisted at the top, light reddish brown.