Leaf blades hirsute on both surfaces, 1–5 cm long, elliptic to lanceolate; ca. as long as the petioles. Flowers: peduncles 5–45 mm long; calyx 7–8 mm long; corolla campanulate to funnelform, white to purplish, tube 5–6 mm long, lobes 4–10 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).