Trees or shrubs. Leaf palmately trifoliolate; stipules small. Inflorescence simple, axillary or pseudoterminal, pendulous raceme. Bract and bracteoles minute. Calyx gamosepalous, slightly bilabiate. Corolla yellow. Vexillum ovate or orbicular; keel shorter than the wings. Stamens monadelphous, alternate anthers shorter and versatile, alternately longer and basifixed. Ovary stipitate, many-ovuled, style glabrous, stigma terminal. Fruit slightly constricted between seeds, dehiscent. Seed estrophiolate, compressed.