Annual, with weakly ascending stem and long spreading or decumbent laxly subdivided branches particularly from near the base, up to 3 dm. tall.. Stem slender, sparsely appressed puberulous, glabrescent.. Leaves 1-foliolate; leaflets linear-lanceolate, lanceolate or elliptic, up to 30–55 mm. long and 5–15 mm. wide, glabrous above, thinly appressed puberulous beneath; petiole up to 4–6 mm. long.. Stipules linear, up to 1 mm. long.. Racemes long and slenderly pedunculate, up to 8–25 cm. long, with ± 8–16 flowers very laxly arranged on the slender rhachis; bracts subulate, up to 1 mm. long; bracteoles inserted at the base of the calyx, very small.. Calyx ± 3 mm. long, sparsely appressed puberulous; lobes narrowly triangular, ± as long as the tube.. Standard suborbicular, clear yellow, with darker veins at the base, glabrous outside; wings obovate-oblong, longer than the keel; keel semiorbicular, with a very short blunt incurved untwisted beak, 3·5–4 mm. long.. Pod subsessile, ellipsoid-oblong or oblong, 9–10 mm. long, 4–5 mm. across, thin-walled and dehiscent, thinly appressed puberulous, ± 24–30-seeded.. Mature seeds unknown.
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