Evergreen, tree reaching up to 8-10 m; bark smooth, light brown when young, becoming ridged and furrowed as the tree matures; leaves alternate, bipinnately compound, leaflets imparipinnate, oblique, margins incised or serrate, oblong to ovate, acute to acuminate; flowers in long, axillary or terminal, panicles, bright yellow, densely pubescent; sepals and petals 5, free, stamens 5, inserted at the base of disk; ovary 3 celled, 2 or more ovules in each; fruits trilobed capsules, few seeded, pink, 3-parted, inflated, bladder like valves; seeds small, smooth, globose, dark brown to black when ripe.