Herbs, usually 10-25 cm tall, acaulescent, from a multiheaded caudex, with appressed yellow long trichomes. Stipules broadly ovate, herbaceous, with dense yellow long trichomes, basally adnate to petiole, apex acute. Leaves 8-20 cm; leaflets (at least some typically) verticillate, in 1-9 whorls but apically 1 to several leaflets reduced to 2 opposite blades; leaflet blades ovate, oblong-ovate, lanceolate, or linear, 0.6-2.5 × 0.3-1 cm, abaxially with long trichomes when mature, adaxially glabrous, apex acuminate to acute. Racemes elongate, compact to rather lax, many flowered; peduncle 8-11(-16.5) cm; bracts lanceolate, almost as long as calyx, with yellow long trichomes. Calyx cylindric, 0.8-1.2(-1.3) cm, with yellow long trichomes; lobes lanceolate-linear, (3.5-)5.5-7 mm, slightly shorter or as long as tube. Corolla white or yellowish white; standard 1.4-2.1 cm, lamina obovate-oblong, apex rounded; wings 1.7-1.8 cm, lamina spatulate-elliptic, apex rounded; keel 1.5-1.8 cm, beak 1.2-3 mm. Legume sessile, ca. 1.8 × 0.8 cm, inflated, membranous. Fl. Jun-Jul, fr. Jul-Aug. 2n = 16.
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