| 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 | |
| Synonyms[1] | |
Arnica chandleriRydb. | |
Arnica cernua is a species ofarnica known by the common nameserpentine arnica.[2] It is native to theKlamath Mountains of northernCalifornia and southernOregon, where it is a member of theserpentine soils flora.[3][4]
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 longpetioles. The blade is oval to spade-shaped and may be several centimeters long. Theinflorescence contains one or more hairy, glandular, daisylikeflower heads, each with a center of yellowish disc florets and a fringe of yellow ray florets which approach 3 centimeters in maximum length.[2]
The fruit is a cylindricalachene about 7 millimeters long which is covered in stiff hairs and has a whitepappus at one end.[2]
