Herbs, perennial, 15-40 cm tall. Stems abbreviated, inconspicuous. Stipules broadly lanceolate, 0.8-1.2 cm, connate to middle. Leaves 0.6-1.6 cm, 7-or 9-foliolate; leaflet blades broadly ovate, 1.5-2 × 1-1.6 cm, both surfaces densely silvery pubescent. Racemes lax, with many flowers; bracts lanceolate, ca. 2 × as long as pedicel; peduncle inconspicuously longer than leaves. Pedicel ca. 2 mm. Calyx campanulate, 7-9 mm, pubescent; teeth lanceolate-subulate, 3-4 × as long as tube. Corolla pinkish purple; standard broadly obovate, 1.2-1.5 cm; wings ca. 1/3 as long as standard; keel ± as long as standard. Ovary pubescent. Legume divided into 2 or 3 articles; articles globose, 5-6 mm in diam., inflated, pubescent, with curved prickles, margin thickened. Fl. Jun-Jul, fr. Jul-Aug.
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