Herbs, to 35 cm tall, caulescent or essentially acaulescent, from a shortly branched multiheaded caudex, tufted, perennial. Stipules narrowly triangular with a subulate free part, 1.8-2.5 cm × ca. 3 mm, villous, basally connate. Leaves subglabrous, 10-30 cm, 19-35-foliolate; leaflet blades narrowly ovate to lanceolate, 5-12 × 3-5 mm, both surfaces white villous, abaxially more densely villous than adaxially. Racemes 1.5-7 cm but elongating in fruit, compact to lax, 5-12-flowered; peduncle (5.6-)8.5-26(-35) cm, much longer than leaves; bracts triangular, 6-7 × ca. 3 mm, shorter than calyx tube, pubescent. Calyx campanulate, 8-10 × ca. 4 mm, with whitish and blackish trichomes; lobes subulate, 4-5 × ca. 0.5 mm, as long as tube. Corolla purple (when dry) or rarely white; standard 1.4-2 cm, lamina ovate, apex emarginate; wings 1.3-1.7 cm, apex emarginate; keel 1.2-1.3 cm, beak 1-2.5 mm. Legume sessile, subcylindric, to 2.5 cm including a slender beak to 5 mm. Fl. Jun-Jul, fr. Jul.
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