Herbs, perennial, erect, 20-100 cm tall. Rootstocks woody; tubers often 2, fusiform, ca. 4 cm. Leaves 3-foliolate; petiole 5-8 cm, pilose; leaflet blade rhombic-orbicular or broadly ovate, 4-6 × 4-5 cm, both surfaces sparsely adpressed villous, base broadly cuneate or oblique, margin irregularly undulate, apex caudate-acute. Racemes terminal, 20-30 cm; peduncle pubescent, intermixed with hooked hairs, 2-or 3-flowered at each node. Pedicel 1.5-2.5 cm. Calyx ca. 7 mm; lobes longer than tube, lower lobes triangular, upper lobes fully connate. Corolla yellow or pink, ca. 1.5 cm; standard elliptic, shortly clawed; wings oblong; keel subequal to wings. Legume flat, 2-or 3-jointed; articles slightly broadly subobovate, 1.1-1.6 cm × 6-7 mm, with hooked hairy stipe 4-7 mm; fruiting pedicel 1.5-2 cm or more. Fl. and fr. Aug-Nov. 2n = 22*.
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