Narrowleaf Arnica - Arnica angustifolia
Other Names:
Arnica alpina
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
6
Agency Status
USFWS:
USFS:
BLM:
External Links
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).
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 mixtus, and
Bombus occidentalis (Mayer et al. 2000, Wilson et al. 2010).