Subacaulescent perennial from a branched caudex and thick taproot. Stems ascending, 1–5 cm. Herbage glabrate to brown-pubescent. Leaflets obovate, weakly serrulate, 1–3 cm long; stipules scarious, 5–15 mm long. Racemes above the leaves, globose, terminal, 15–25 mm long subtended by 6 to 12 scarious, ovate bracts. Flowers erect, purple, 11–18 mm long; calyx glabrous; sepals linear-lanceolate, 2–5 mm long. Legume short-stipitate, glabrous, 5–6 mm long with 1 to 4 seeds (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Our plants are variety montanenese
(Rydb.) S.L. Welsh.