Shrubs, short. Leaves squamiform. Flowers numerous; racemes slender, sparsely flowered. Calyx campanulate; teeth 5, ca. 1/2 as long as keel, upper 2 wider than lower 3. Standard orbicular or orbicular-reniform, base shortly clawed, apex with a sinus; keel shorter than wings. Stamens diadelphous; anthers homomorphic. Ovary sessile; style inrolled, upper dorsal surface longitudinally barbate; stigma terminal. Legume orbicular or oval, flattened and slightly turgid, 2-valvate, indehiscent. Seeds 1 or 2(or 3), reniform, without strophiole, segments membranous.

About three species: C Asia; one species in China.

(Authors: Sun Hang (孙航); Kai Larsen)