Trees or shrubs. Lvs mostly imparipinnate; leaflets entire, often stipellate; stipules setaceous or spinescent. Infl. axillary, racemose; bracts deciduous; bracteoles 0. Calyx campanulate; calyx teeth short; upper 2 teeth somewhat connate. Corolla white, pink or rose-purple. Vexillary stamen free or partly connate with others into a closed tube; anthers uniform or alternately smaller. Style incurved, hairy at apex; stigma terminal. Pod 2-valved, dehiscent, ± straight and flattened, many-seeded; sutures somewhat thickened; seeds estrophiolate.