Tree. Leaf pinnately trifoliolate, leaflets large, stipellate, stipules free, deciduous. Inflorescence fascicled axillary racemes at the older nodes. Bracts scale-like, bracteoles below the calyx. Calyx with 2 upper teeth connate into a broad emarginate lip, lower lobe larger than the lateral. Vexillum suborbicular. Keel subequal to the wings. Stamens diadelphous, 9+1, anthers uniform. Ovary sessile, ovules numerous. Fruit flat, elongated with numerous joints (or fewer by abortion), joints smooth, scarcely dehiscent.