Arnica nevadensis

A. Gray

Proc. Amer. Acad. Arts 19: 55. 1883.

Common names: Nevada arnica Sierra arnica
Synonyms: Arnica tomentella Greene
Treatment appears in FNA Volume 21. Treatment on page 374. Mentioned on page 368.
Revision as of 19:51, 24 September 2019 by FNA>Volume Importer

Plants 10–50 cm. Stems simple. Leaves 2–3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes); petiolate (petioles narrowly to broadly winged); blades elliptic to ovate, 3–8 × 2–4 cm, margins entire or denticulate, apices acute to rounded, faces stipitate-glandular. Heads 1(–3). Involucres campanulate-turbinate. Phyllaries 10–16, oblanceolate. Ray florets 6–14; corollas yellow. Disc florets: corollas yellow; anthers yellow. Cypselae dark gray, 6–9 mm, stipitate-glandular; pappi white or tawny, bristles barbellate to subplumose. 2n = 76.


Phenology: Flowering Jul–Aug.
Habitat: Coniferous forests, meadows, rocky slopes
Elevation: 1500–3000 m

Distribution

V21-940-distribution-map.gif

Calif., Nev., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.