Herbs, usually 10-20 cm tall, acaulescent, from a multiheaded caudex. Stipules herbaceous. Leaves 4-10 cm, with white short cottonlike trichomes; leaflets verticillate, almost sessile, in 7-18 whorls, 3-6 blades per whorl; leaflet blades broadly elliptic, elliptic, or orbicular, apex acute. Racemes 8-10-flowered or more; peduncle 6-16 cm, slender, ca. 2 × as long as leaves, with sparse white trichomes; bracts ovate-lanceolate, shorter than calyx. Calyx cylindric, 1-1.5 cm, with white and black short cottonlike trichomes; lobes triangular, ca. 2.5 mm, ca. 1/5 as long as tube. Corolla purplish blue; standard 2.5-3 cm; keel beak incurved. Legume sessile, globose, 2-2.5 cm, inflated, membranous, with appressed short cottonlike trichomes, abaxial suture with septum, adaxial suture deeply grooved, beak short. Fl. Jul, fr. unknown.
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