Stems absent or erect, 0–15 cm. Herbage villous. Leaflets 15 to 30, ovate to lanceolate. Stipules herbaceous, lanceolate, distinct, 6–12 mm long, basally adnate to the petiole. Inflorescence of 2 to 40 spreading flowers, 5–30 cm long including the peduncle. Flowers white to bluish; calyx white-sericeous and black-strigose; sepals linear, 1–5 mm long; banner 6–10 mm long. Legumes drooping, 1–2 cm long with a short stipe, black- and white-strigose, compressed perpendicular to the grooved upper suture (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Montana plants are variety foliolosa
(Hook.) Barneby or variety sericea
Torr. & A. Gray.