Perennial, Shrubs, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodules present, Stems or branches arching, spreading or decumbent, Stems prostrate, trailing, or mat forming, Stems less than 1 m tall, Plants gland-dotted or with gland-tipped hairs, Stems solid, Stems or young twigs sparsely to densely hairy, Stem hairs hispid to villous, Stems hairs pilose or spreading, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules persistent, Stipules clasping stem at the base, Stipules adnate to petiole, Stipules connate to each other, forming a tuber or sheath, Leaves compound, Leaves pinnately 3-foliolate, Le aves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 3, Leaves glabrous or nearly so, Leaves hairy on one or both surfaces, Flowers in axillary clusters or few-floweredracemes, 2-6 flowers, Inflorescences spikes or spike-like, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Inflorescence terminal, Bracts conspicuously present, Bracts hairy, Bracteoles present, Flowers zygomorphic, Calyx 5-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals orange or yellow, Petals bicolored or with red, purple or yellow streaks or spots, Banner petal ovoid or obovate, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Stamens 9-10, Stamens or anthers dimorphic, alternating large and small, Stamens monadelphous, united below, Filaments glabrous, Style terete, Fruit a loment, jointed, separating into articles, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit rugose wrinkled or reticulate, Fruit exserted from calyx, Fruit beaked, Fruit hairy, Fruit 2-seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.
"Procumbent herbs or undershrubs; root-stock woody. Stem, peduncles and pedicels loosely villous. Leaves 3-foliolate; leaflets 8-20 x 2.5-5 mm, oblong-elliptic or linear-lanceolate, acute at base and apex, mucronate at tip, pubescent on both sides, ciliate on margins; nerves parallel and close; stipules 8-13 mm long, lanceolate, adnate to base of petiole, sheathing, villous without. Flowers yellow 3-5 in terminal heads; bracts and bracteoles 0.8-1.2 cm long, linear-lanceolate, densely hairy. Calyx lobes 2-4 mm long, densely brown hairy. Petals yellow, 4-6 mm long. Stamens monadelphous. Ovary 2-3 mm long, suborbicular, woolly; style filiform. Pods 5-8 mm long, monoiliform, 1or 2-articulate; articles pilose, reticulate, fully enclosed in calyx, beak curved. Seeds c. 2.5 mm long, reniform."