Herbs, perennial, 40-80 cm tall. Stems caespitose, erect. Stipules ovate, 8-10 mm, connate farther than middle. Leaves 8-10 cm, 15-21-foliolate; leaflet blades ovate-oblong, 1.7-2.1 × 0.4-0.6 cm, abaxially sparsely pilose, adaxially glabrous. Racemes lax, with many flowers; bracts lanceolate, ± as long as pedicel; peduncle conspicuously longer than leaves. Pedicel 3-4 mm. Calyx campanulate, 4-5 mm, pilose; teeth lanceolate, ± equal, slightly longer than tube. Corolla unknown. Legume divided into 2 or 3 articles, stipe 8-10 mm; articles basally obovoid and apically rhomboid, 12-15 × 5-7 mm, compressed, pilose, margin irregularly dentate. Fl. Jul-Aug, fr. Aug-Sep.
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