Taprooted branching prostrate or ascending annual, up to 60 cm. tall; stems, leaves and inflorescence appressed strigulose, usually rather densely so, usually a characteristic greenish-yellow when young.. Stipules subulate-setaceous, 2–4 mm. long; rhachis, including a petiole of 1–7 mm., up to 5 cm. long, usually prolonged 1–3 mm. beyond the lateral leaflets; leaflets 7–17 (rarely –21), elliptic-oblong or linear-lanceolate, acute or rounded at the apex, up to 12 or rarely 17 mm. long and 5 mm. wide.. Racemes 1–6 cm. long, 5–20-flowered; bracts linear-lanceolate, caducous; pedicels ± 1 mm. long.. Calyx more than half as long as stamens, strigose, divided almost to the base; lobes subulate-setaceous, 2–4 mm. long.. Corolla pubescent or strigulose outside.. Stamens 3–4(rarely 5) mm. long.. Pod erect or spreading or, less often, somewhat reflexed, 15–20 mm. long, ± 1.7 mm. wide and 1.4 mm. thick, densely strigulose, 7–13-seeded; endocarp spotted.
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