Narrowleaf Arnica - Arnica angustifolia
Stems solitary, erect, 5–25 cm. Herbage glandular, villous. Leaves: basal and cauline similar; blades entire, narrowly lanceolate, 2–7 cm long; basal leaves petiolate; stem leaves 1 to 3 pairs, becoming sessile. Heads solitary; involucre campanulate, 10–15 mm high, densely villous. Rays 9 to 14; ligules 1–2 cm long. Pappus short-barbed, white. Achenes hirsute, 3–8 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Our plants are subspecies tomentosa
(J.M. Macoun) G.W. Douglas & Ruyle-Douglas.
Stony, calcareous soil of exposed ridges, talus slopes; upper subalpine to alpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus bifarius
, Bombus mixtus
, and Bombus occidentalis
(Mayer et al. 2000, Wilson et al. 2010).