Description from Flora of China
Shrubs. Leaves alternate, imparipinnate; leaflets 3-7, opposite, estipellate. Flowers solitary along inflorescence rachis; bract persistent, small; bractlets absent. Calyx campanulate to tubular, very oblique and gibbous at back, caducous in fruit; teeth 5. Corolla much exserted; standard suberect, narrow, slightly longer than wings and keel; wings oblong, obtuse, slightly falcate, free, claw very long; keel rather like wings, scarcely cohering at apex. Stamens 10, diadelphous (9+1), vexillary free, remainder slightly connate; anthers small, versatile. Ovary stipitate, 1- or 2-ovuled; style filiform, incurved; stigma capitate, small. Legume stipitate, ovoid or ellipsoid, drupelike, indehiscent, 1-seeded. Seeds exalbuminous, without strophiole; testa white, membranous. x = 9.
Geographic distribution is the same as that of the tribe.