A large deciduous tree that grows up to 40 m in height. Crown is dense, dome-shaped, wide-spreading & drooping. Leaves are simple pinnate compound. Flowers are yellow and occur in large bunches of 15-30 cm long. Fruits are flattened, disc-like pods with papery wings about 5cm in diameter, 1 or more seeds in each. A cultivated species in Singapore.
The floral buds of the Angsana develop high up on the crown, unnoticed by anyone, until the right stimulus triggers the buds on the crown to bloom in yellow simultaneously. This brilliant display of colour lasts only for a day, after which the tree lays a soft carpet of yellow flowers on the ground beneath it. This specimen along Upper Serangoon Road is probably more than 60 years of age and is one of the largest roadside trees in Singapore.This tree was saved from the axe through extensive collaboration between agencies that saw the realignment of a larger drainage channel under the road surface.