Twining shrubs. Stems glabrous, ridged. Leaves imparipinnate; stipules broadly triangular. Inflorescences axillary, racemose; bracts small, caducous; bracteoles minute. Calyx somewhat obliquely campanulate; teeth 5, ± equal. Standard petal ± orbicular, pink, folded forwards; wings and keel somewhat oblanceolate, acute, clawed. Stamens 9 + 1; uppermost free; other 9 united into a tube; anthers uniform. Ovary stalked; ovules c. 7; style slender, incurved; stigma terminal, minute. Pods elliptic-oblong; margins thickened, dehiscent, apiculate. Seeds kidney-shaped.
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