Tree, c. 15 m tall; bark dark brown. Leaf imparipinnate, 30-45 cm long; leaflets 11-17, c. 7.5-15 cm long, 5-6 cm broad, elliptic-oblong, glabrous. Inflorescence a raceme, arising from the old wood. Flowers yellow to orange-red. Pedicel c. 16-22 mm long. Calyx cup shaped, teeth obtuse. Vexillum c. 3 cm long. Fruit c. 20-22.5 cm long, c. 5 cm wide, turgid, woody, spongy inside between the seeds.

Cultivated in the gardens of Pakistan; native of Queensland and New South Wales in Australia.