Shrublets, 0.3-1 m tall. Young branches sparsely shortly appressed hairy. Petiole 0.1-1.4 cm, with sparse appressed short hairs; stipels absent; leaflets obdeltoid to obcordate or obovate, terminal one 0.4-0.9 × 0.3-0.8 cm, abaxially sparsely or ± densely shortly appressed hairy, adaxially glabrous or sparsely pubescent, base obtuse or cuneate, apex retuse and mucronulate. Racemes axillary or terminal, 1-12 cm; rachis and pedicels with sparse ascending short hairs, rarely mixed with glandular hairs. Pedicels 0.8-3 mm. Calyx ± densely shortly ascending hairy, rarely mixed with glandular hairs; tube 1.5-2 mm; lobes narrowly triangular, 1.6-2 mm. Corolla purple; standard elliptic, 11-12 mm, apex obtuse; wings 10-11 mm, clawed at base; keel incurved, 11-13 mm, clawed at base. Ovary ca. 3.5 mm, puberulent; style incurved, ca. 6.6 mm. Legume obliquely narrowly ovoid, 8-12 × 3.5-5 mm, with ascending short hairs, apex obtuse. Seeds obliquely oblong. Fl. and fr. Jun-Aug.
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