Shrubs or small trees, not armed. Lvs 3-foliolate, petiolate; stipules small. Infl. axillary or pseudoterminal, racemose, usually pendent at anthesis; bracts and bracteoles usually inconspicuous. Calyx campanulate, bilabiate; upper lip 2-toothed; lower lip shortly 3-toothed. Corolla yellow. Stamens connate into a closed tube; alternate anthers long and basifixed or short and versatile. Style incurved, glabrous; stigma terminal. Pod 2-valved, ± straight, dehiscent, slightly constricted between seeds; sutures thickened or winged; seeds estrophiolate.