Taxon Report

Arnica venosa Hall

Shasta County arnica

Print Report

©2005 Dean Wm. Taylor

Classification


Scientific Name:	Arnica venosa Hall
Common Name:	Shasta County arnica
Family:	Asteraceae
Element Code:	PDAST0Q0Q0
USDA Plants Symbol:	ARVE
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: May-Jul(Sep)	May-Jul(Sep)
Elevation:	335-1490 (1100-4890)
General Habitats:	Cismontane woodland, Lower montane coniferous forest
Microhabitat:	Disturbed areas (often), Roadsides (often)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
Shasta (SHA), Trinity (TRI)
Quads: Name (Quad Code)
Bohemotash Mtn. (4012274), Bollibokka Mtn. (4012282), Carrville (4112216), Chicken Hawk Hill (4112214), Covington Mill (4012287), Damnation Peak (4012285), Dunsmuir (4112223), French Gulch (4012266), Girard Ridge (4112222), Hanland Peak (4012283), Igo (4012255), Lamoine (4012284), Minnesota Mtn. (4012272), Mumbo Basin (4112225), O'Brien (4012273), Papoose Creek (4012276), Platina (4012238), Project City (4012263), Schell Mtn. (4012275), Shasta Dam (4012264), Shoeinhorse Mtn. (4112211), Tangle Blue Lake (4112226), Tombstone Mtn. (4112213), Trinity Center (4012286), Trinity Dam (4012277), Whiskeytown (4012265), Whisky Bill Peak (4112215), Ycatapom Peak (4112217), Yellowjacket Mtn. (4112212)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Threatened by logging. Possibly threatened by grazing and vehicles. Some plants seem intermediate to A. discoidea.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].