Shrubs, deciduous. Stipules persistent and becoming spines. Leaves paripinnate; rachis and petiole becoming a spine after leaf­lets have fallen. Raceme on reproductive branchlets, few flowered; peduncle slender. Calyx campanulate, base oblique; teeth 5, very short. Corolla pale purple or purplish red; standard suborbicular, slightly reflexed at margins; wings clawed, claw equal to auricle; keel semicircular, slightly curved, apex blunt at apex. Stamens diadelphous (9+1). Ovary stipitate, inflated; style incurved; stigma small. Legume inflated, valve thick.

One species: China, Mongolia, Russia.

(Authors: Zhu Xiangyun (朱相云); Kai Larsen)