Stems 0.5-10 cm, with appressed hairs up to 1 mm. Leaves 3-7 cm; stipules 3-5 mm, white and black ciliate; petiole 1-2.5 cm, with rachis loosely to rather densely appressed to spreading hairy; leaflets in 5-7 pairs, narrowly elliptic, 3-14 × 0.5-4 mm, loosely hairy, apex rounded to slightly retuse. Racemes 1-5-flowered; peduncle 1-12 cm, appressed hairy; bracts whitish membranous, 1-2 mm, ciliate. Calyx tubular, 5-8 mm, with subappressed to ascending white hairs, toward teeth with black hairs; teeth subulate, 2-3.5 mm. Petals violet or whitish; standard 9-10 mm, limb in middle strongly dilated, 3.5-4 mm wide; wings 7-8 mm; keel 6-6.5 mm. Legumes sessile, linear, distinctly to semicircular curved, (1-)2-4 cm, 2.5-3 mm high and ca. 3 mm wide, with a hooked beak; valves thin, pale brownish, rather densely covered with appressed hairs 0.05-0.3 mm and sparsely to loosely with ascending to spreading hairs 0.4-1 mm.
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