Montana Field Guide

Scapes 10–60 cm. Leaves mostly glabrous; the blade oblong, 3–25 cm long, entire to serrulate. Umbel glandular, of 3 to 10 flowers; pedicels 1–4 cm long. Flowers sometimes 4-merous; corolla lobes 8–20 mm long, pink to purple (white), darker than the tube, often glandular; base of anther tube purple, horizontally wrinkled; calyx glandular, filaments <1 mm long. Capsule ovoid, 6–12 mm long, operculate, valves splitting below the operculum (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Meadows, wet, open forest, along streams; upper montane to upper subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans, Bombus auricomus, Bombus bifarius, Bombus centralis, Bombus flavifrons, Bombus huntii, Bombus melanopygus, Bombus mixtus, Bombus nevadensis, Bombus rufocinctus, Bombus sylvicola, Bombus occidentalis, and Bombus pensylvanicus (Macior 1968, Macior 1974, Thorp et al. 1983).