| Arnica cernua | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Arnica |
| Species: | A. cernua |
| Binomial name | |
| Arnica cernua Howell | |
| Synonyms | |
|
Arnica chandleri Rydb. | |
Arnica cernua is a species of arnica known by the common name serpentine arnica. It is native to the Klamath Mountains of northern California and southern Oregon, where it is a member of the serpentine soils flora.
This is a perennial herb growing one or more green to purplish stems up to about 30 centimeters tall. There are 3 or 4 pairs of leaves on long petioles. The blade is oval to spade-shaped and may be several centimeters long. The inflorescence contains one or more hairy, glandular, daisylike flower heads, each with a center of yellowish disc florets and a fringe of yellow ray florets which approach 3 centimeters in maximum length.
The fruit is a cylindrical achene about 7 millimeters long which is covered in stiff hairs and has a white pappus at one end.
References
- The Plant List Arnica cernua Howell
- ^ Flora of North America, serpentine arnica, Arnica cernua
- Biota of North America Program 2014 county distribution map
- Calflora taxon report, University of California, Arnica cernua, Howell serpentine arnica
External links
| Taxon identifiers | |
|---|---|
| Arnica cernua |
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