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Subshrubs or diffuse herbs, perennial, woody at base, 25-75 cm tall, with many branches. Branches, petioles, and rachises of leaves pilose. Leaves 3-6 cm, with a stipitate gland on top of petiole and on rachis between lowest pair of leaflets; stipules linear-subulate, 6-8 mm, acuminate; leaflets 12-20 pairs, sessile, unequally sided, linear-falcate, 8-12 × ca. 2 mm, midrib near upper margin of blade, apex mucronate. Flowers axillary, solitary or most often 2 or 3 together in a very short raceme; bracts and bracteoles similar to stipules but shorter. Sepals ovate-oblong, 4-6 mm, apex acute. Petals bright yellow, unequal, oblong-obovate, shorter than or ca. as long as sepals, shortly clawed. Stamens 5, subequal; anthers oblong, opening by apical pores enlarging to short slits. Ovary sessile, appressed tomentose; stigma peltate, small. Legume flat, straight, strap-shaped, 3-5 × ca. 0.5 cm, pilose. Seeds 10-20, subrhomboid, ca. 3 mm, flat, smooth. 2n = 32.
A low lying herb. It grows 20-40 cm tall and spreads 0.5-1 m wide. The stems arise from a woody rootstock. The leaves are 1 cm long. There are 10-15 pairs of leaflets. These are about 1 cm long and very narrow. The flowers are 2 cm across. The occur singly in the axils of upper leaves. The flowers are yellow. The pods are 2-2.5 cm long by 0.5 cm wide and flattened.
