A decumbent (or sometimes ascending) shrublet, branched at the base, rarely reaching more than 0.2 m above the ground, sparsely ramified. Young branches often reddish, densely tomentose. Leaflets linear (-filiform), 3-6(-10) mm long, weak, straight or often slightly recurved, spreading or ascending, green to somewhat purplish, glabrous or with either spreading hairs or almost sericeous, acute or acuminate. Flowers distributed along 20-100 mm of the branches below leafy branch ends. Bract, pedicel and bracteoles lacking. Calyx tube ovoid, campanulate, pale yellow or purplish, sericeous or tomentose; lobes linear or subulate, 1.3-4.5 mm long, generally more or less recurved, weak (i.e. not rigid), green, acuminate, glabrous or with appressed or spreading, sparse hairs. Petals pale to bright yellow. Standard elliptic-obovate, (5.5-) 6-8.5(-9) x (3.5-) 4-6.5(-7) mm, rounded or retuse apically, not much recurved, short-sericeous on most of back, margin in a broad claw. Wing blades spathulate, oblanceolate, (4-)4.5-6.5-7) x 1.5-3 mm, apically rounded, glabrous, with two longitudinal rows of minute folds on basal upper half, basal part of outside connate to keel pouch; claws 3-4.5 mm long, basally attached to staminal sheath for 0.3-2.5 mm. Keel blades small, (2.5-)3-4.2 x 1.4-2.4 mm, glabrous (rarely short-hairy on lower margin), with slightly convex upper margin and distinct basal pouch; claws slender, 2.5-4.5(-5) mm long, basally attached to staminal sheath for 0.5-3 mm. Pistil pubescent on ovary and basal parts of the style; style only slightly upcurved. Pod minute, ovate, 2.2-3.5 x 1.3-1.7 mm, sericeous or tomentose, enclosed in the calyx (probably indehiscent).
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Spreading shrublet to 20 cm. Leaves 3-foliolate, leaflets terete, weak, often slightly recurved, hairy or glabrous. Flowers solitary, scattered, pale to bright yellow, bracts and bracteoles lacking, wings and keel glabrous, calyx hairy, lobes awl-shaped, generally recurved, weak.