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Leaves almost all 3-foliolate, uppermost sometimes 1-foliolate, crowded and larger just below the inflorescences; leaflets mostly 15–30 × 4–6 mm, upper ones up to 50 × 8 mm, linear-oblanceolate to oblong-oblanceolate, rounded at the apex, long-cuneate to the base, pilose on both surfaces; petioles mostly 5–15 mm long, uppermost up to 2.5 cm, narrowly winged; stipules 0.
A slightly woody herb. It grows 15-20 cm high. It has silky hairs. There are several branches curving upwards. The leaves have 3 leaflets. They are crowded near the flowers. The leaflets are narrow and sword shaped. The flowers are small and yellow. The fruit are pods 4-6 mm.
Standard obovate, pale yellow, marked red at the base inside, veined reddish and medially pubescent outside; wings nearly as long as the keel; keel 4–5.5 mm long, angular, with a narrow twisted beak.
Erect annual 10–70(100) cm tall, developing numerous curved-ascending branches, particularly from near the base, densely covered with long mostly spreading hairs.
Pod sessile, (4)5–6 × 3–5 mm, ovoid-globose to bluntly ellipsoid, densely pilose outside, hairy inside along upper suture behind the placenta, 2-seeded.
Flowers in dense subsessile heads or racemes; bracts 1–2 mm long, setaceous; pedicel recurved near apex, without bracteoles.
Calyx 3–4 mm long, densely hairy; lobes narrowly triangular, 2–3 times as long as the tube.
Seeds 2–2.5 mm long, oblique-cordiform, smooth.
