Standard obovate, yellow, lined and later flushed red, subglabrous; wings shorter than the keel; keel 4 mm long, angular, with a narrow twisted only slightly incurved beak.
Racemes 2–4 cm long, laxly 3–6-flowered, with a few other flowers developing in the axils below; bracts 1–2 mm long, linear; pedicels 2–4 mm long, without bracteoles.
Calyx 2–3 mm long, thinly appressed puberulous; upper lobes attenuate-triangular, 1.5 times as long as the tube.
Diminutive erect branching annual 15–25 cm tall; stem wiry, subglabrous.
Pod sessile, 3 mm long, ovoid-globose, minutely puberulous, 1–2-seeded.
Seeds 1.5 mm long, oblique-cordiform, smooth, with a prominent aril.