Large shrub or tree, wood coloured. Leaves paripinnate or bipinnate. Leaflets in few pairs, obovate; stipules either small and deciduous or spiny. Inflorescence axillary raceme. Bract minute, bracteoles absent or caducous. Calyx segments 5, subequal, imbricate. Petals 5, yellow, imbricate. Stamens 10, free, filaments hairy at the base, anthers uniform. Ovary shortly stipitate, 2-3 ovuled, style filiform, stigma minute, terminal. Fruit lanceolate, membranous, dehiscent, 2-3 seeded. Seeds oblong, cotyledons bilobed.