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Leaves mostly 3-foliolate, uppermost on main and suppressed lateral branches sometimes 1-foliolate; leaflets 5–10 × 1–3 mm, obcuneiform to oblanceolate, appressed puberulous beneath; petiole 2–6 mm long; stipules 0.
Racemes short, few-flowered, most of the flowers solitary or clustered in axils all along the branches; bracts 1 mm long, linear to shortly linear-lanceolate.
Calyx 3–4 mm long, appressed puberulous; upper lobes narrowly attenuate-triangular, 2–3 times as long as the tube.
Bushy annual 35–80 cm tall; branches slender, appressed puberulous.
Pod sessile, 3–4 mm across, subglobose, puberulous, 1–2-seeded.
Mature seeds not seen.
