A large deciduous tree that grows up to 40 m in height. Crown is round, dense and dark green in appearance. Trunk is broad, buttressed, with dark grey scaly bark. Leaves are dark glossy green. Flowers are fragrant, pale green to yellow in colour and occur in large bunches arising from the axils of the leaves. Fruits are distinctive, large heavy woody pods, brown in colour, splitting into 5 valves to release numerous flat single-winged seeds.