Montana Field Guide

Fibrous-rooted perennial from a short, sometimes branched rhizome. Stems ascending to erect, 10–50 cm. Herbage glabrate to sparsely strigose. Leaves basal and cauline; blades oblanceolate to ovate, 2–10 cm long, sometimes weakly dentate, sessile and clasping above. Heads 1 to 2, radiate. Involucres hemispheric, 6–10 mm high; phyllaries in 2 or 3 series, minutely glandular, villous with septate hairs. Rays 45 to 140, white; ligules 7–12 mm long. Disk corollas 2–4 mm long. Achenes 1–2 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Meadows, open forest; montane, 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 bifarius, Bombus centralis, Bombus fervidus, Bombus flavifrons, Bombus huntii, Bombus melanopygus, Bombus mixtus, Bombus rufocinctus, Bombus occidentalis, and Bombus insularis (Thorp et al. 1983, Wilson et al. 2010, Colla and Dumesh 2010, Koch et al. 2012).