Montana Field Guide

Fibrous-rooted from a short rhizome or branched caudex. Stems erect, 10–30 cm. Herbage glabrous. Leaves thick, long-petiolate below; basal blades obovate to suborbicular, sometimes cordate, crenate, 1–4 cm long; cauline lanceolate to oblanceolate, pinnately lobed or toothed, the lower clasping. Inflorescence corymbiform with 1 to 12 heads. Heads radiate; involucres 5–8 mm high; phyllaries 13 or 21, glabrous, green with ciliate tips. Rays 8 or 13; ligules 3–8 mm long. Disk corollas 4–6 mm long. Achenes 2–3 mm long, glabrous (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

We have varieties dimorphophyllus and paysonii T.M. Barkley

Stony soil; subalpine to alpine (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 flavifrons, Bombus frigidus, Bombus huntii, Bombus melanopygus, Bombus mixtus, Bombus sylvicola, Bombus occidentalis, Bombus insularis, Bombus suckleyi, Bombus flavidus, and Bombus kirbiellus (Schmitt 1980, Thorp et al. 1983, Mayer et al. 2000, Wilson et al. 2010, Pyke et al. 2012, Koch et al. 2012, Williams et al. 2014).