Shrubs, ca. 1.5 m tall. Young branches distinctly quadrangular, sparsely shortly appressed hairy. Petiole abaxially angled, often narrowly winged along both sides, 2-4 cm, with dense appressed short hairs; stipels absent; leaflets ovate to elliptic, terminal one 3-8 × 1.5-4.5 cm, abaxially sparsely appressed or ascending hairy, adaxially glabrous, base obtuse or rounded, apex obtuse or retuse and mucronulate. Racemes ± densely flowered, 3-5 cm, often paniculate; rachis with ± dense appressed short hairs. Pedicels 6-8 mm, with ± dense appressed or ascending short hairs. Calyx with dense appressed short hairs; tube ca. 2 mm; lobes narrowly triangular, 3-4 mm. Corolla purple; standard elliptic, 13-14 mm, apex obtuse; wings ca. 12 mm, clawed at base; keel incurved, 16-17 mm, clawed at base. Ovary ca. 2.5 mm; style incurved, 11-11.5 mm. Legume ovoid, 6-9 × 3-5 mm, appressed shortly hairy, apex obtuse.
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