Erect or spreading annual or short-lived perennial, up to 5 dm. tall, the lower branches often becoming long and prostrate or decumbent.. Stem pilose with fine silvery-grey spreading hairs, ultimately glabrescent.. Leaves 3-foliolate; leaflets lanceolate to elliptic-lanceolate, up to 28–40 mm. long, 8–12 mm. wide, bluntly pointed or rounded at the apex, narrowed to the base, rather densely pilose on both surfaces; petiole up to 20–40 mm. long.. Stipules filiform, up to 8–12 mm. long.. Racemes lax, up to 13 cm. long, ± 7–12-flowered; bracts subulate or filiform, 3–8 mm. long; bracteoles curved-ascending from just below the calyx, linear, 3–5 mm. long.. Calyx 10–13 mm. long, densely spreading pilose; upper lobes narrowly oblong, 3–4 times as long as the tube.. Standard obovate, dull yellow-green, becoming strongly suffused with blue inside, densely pubescent outside; wings oblong, as long as the keel; keel subangular in the lower half, with a straight un-twisted beak, 11–14 mm. long, yellow-green or suffused with blue towards the tip, conspicuously lanate-pubescent along the upper margin proximal to the beak.. Pod shortly stipitate, ellipsoid-clavate, ± 25–32 mm. long, 8–10 mm. across, uniformly rather densely spreading pilose, ± 24-seeded.. Seeds oblique-cordiform, ± 2·5–3·5 mm. long, obscurely rugulose, with the raised areas concentric towards the margin, radial towards the hilum
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