Arnica cernua

Taxobox
name = "Arnica cernua"


regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Asterales
familia = Asteraceae
tribus = Heliantheae
genus = "Arnica"
species = "A. cernua"
binomial = "Arnica cernua"
binomial_authority = Howell
synonyms = "Arnica chandleri"

"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.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,701,703 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=ARCE USDA Plants Profile]
* [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066108 Flora of North America]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Arnica+cernua Photo gallery]