Annual or short-lived perennial, with spreading branches, up to 70 cm. tall; stems densely or, in their lower parts, sparsely fulvous strigulose. Leaf-rhachis up to 7 cm. long, including a petiole of up to 5(–12) mm., prolonged 1–3 mm. beyond lateral leaflets; stipules narrowly triangular, attenuate, up to 4 or 5 mm. long; leaflets 7–19, narrowly cuneate-elliptic, rounded at the apex, up to 3 cm. long by 1 cm. wide, glabrous or, rarely, pubescent above, appressed silvery beneath; main lateral nerves ± 8 on each side, rather prominent. Flowers pink, in lax pseudoracemes and a few upper leaf-axils; bracts linear, up to 2 mm. long, persistent; pedicels up to 3 mm. in flower and 4 mm. in fruit. Calyx appressed fulvous hirsute; tube 2 mm.; teeth triangular-acuminate, the upper pair free to base, 2 mm., lateral 2.5 mm., lower 3.5 mm. long. Standard appressed fulvous silky outside, ± 7 mm. long; keel glabrous. Upper filament lightly attached, widened, but not callous or bent, 1 mm. above the base; filament-sheath 5 mm., free parts ± 2 mm., anthers 0.4 mm. long. Style glabrous, gently curved, penicillate, 2.5 mm. long. Pod spreading or somewhat ascending, slightly upcurved, ± 3.5 cm. long, 4 mm. wide, its beak slightly downcurved, dark brown with scattered fulvous hairs, darker and more copious at the sutures. Seeds 9–10, longitudinal, brown; hilum ± one-third along the side, with a prominent white annular aril, not cupping the seed.
