Arnica ovata

Greene

Pittonia 4: 161. 1900.

Common names: Sticky leaf arnica
Endemic
Synonyms: Arnica diversifolia Greene Arnica latifolia var. viscidula A. Gray
Treatment appears in FNA Volume 21. Treatment on page 372. Mentioned on page 368.

Plants 10–50 cm. Stems (forming clumps) simple or branched among heads. Leaves 2–3(–4) pairs (basal 1–2 pairs usually withered by flowering, petiolate, petioles broadly winged, blades round-ovate, relatively small; sterile rosettes lacking), mostly cauline; petiolate (at least middle pair, petioles broadly to narrowly winged); blades broadly deltate to ovate, 4–8 × 2–6 cm (middle pair largest), margins irregularly denticulate to coarsely dentate-serrate, apices acute, faces puberulent (hairs minute) and stipitate-glandular. Heads 1–3(–5). Involucres usually narrowly turbinate, rarely narrowly campanulate. Phyllaries 9–20, linear to narrowly lanceolate. Ray florets 8–16, yellow. Disc florets: corollas yellow; anthers yellow. Cypselae brown to black, 5–7 mm, sparsely to moderately pilose and stipitate-glandular; pappi stramineous to tawny, bristles subplumose. 2n = 57, 76.


Phenology: Flowering Jul–Sep.
Habitat: Moist meadows and conifer forests, stream banks, late snow-melt areas, montane to subalpine
Elevation: 200–3600 m

Distribution

V21-932-distribution-map.gif

Alta., B.C., Yukon, Alaska, Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Arnica ovata"
Steven J. Wolf +
Greene +
Sticky leaf arnica +
Alta. +, B.C. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
200–3600 m +
Moist meadows and conifer forests, stream banks, late snow-melt areas, montane to subalpine +
Flowering Jul–Sep. +
Arnica diversifolia +  and Arnica latifolia var. viscidula +
Arnica ovata +
species +