Arnica nevadensis

Taxobox
name = "Arnica nevadensis"
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Asterales
familia = Asteraceae
tribus = Heliantheae
genus = "Arnica"
species = "A. nevadensis"
binomial = "Arnica nevadensis"
binomial_authority = A.Gray
synonyms = "Arnica tomentella"

"Arnica nevadensis" is a species of arnica known by the common names Nevada arnica and Sierra arnica. It is native to the coniferous forests of the western United States. It is a perennial herb producing one or more hairy, glandular stems up to about 30 centimeters tall. There are two or three pairs of leaves along mainly the lower half of the stem, each oval in shape with the lowest up to 8 centimeters long. The inflorescence holds one to three daisylike flower heads lined with phyllaries coated in glandular hairs. The flower head has a center of yellow disc florets and a fringes of yellow ray florets. The fruit is an achene with a white to cream-colored pappus.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,701,712 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=ARNE3 USDA Plants Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Arnica+nevadensis Photo gallery]