Species Details

Arnica cernua

serpentine arnica

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Species Description:

Arnica cernua, commonly known as serpentine arnica, is a perennial rhizomatous herb in the Asteraceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, growing at elevations from 500 to 1920 meters. Arnica cernua is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification

Scientific Name: Arnica cernua Howell
Common Name: serpentine arnica
Family:	Asteraceae
Element Code:	PDAST0Q040
USDA Plants Symbol:	ARCE
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S4
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Apr-Jul

Elevation:
500 - 1920 meters
1640 - 6300 feet

General Habitats:

Lower montane coniferous forest (serpentinite)

Microhabitat Details:

Microhabitat:

Notes

Notes: Possibly threatened by logging.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Shasta (SHA), Siskiyou (SIS), Trinity (TRI)

Quads: Name (Quad Code)
Blue Creek Mtn. (4112347), Broken Rib Mtn. (4112386), Chicken Hawk Hill (4112214), Childs Hill (4112461), Chimney Rock (4112356), Dees Peak (4112313), Devils Punchbowl (4112376), Fish Lake (4112336), Grouse Mtn. (4012376), Hamburg (4112371), High Divide (4112481), High Plateau Mtn. (4112388), Hoopa (4112316), Hupa Mountain (4112317), Johnsons (4112337), Kangaroo Mtn. (4112382), Klamath Glen (4112358), Lonesome Ridge (4112346), Preston Peak (4112375), Shelly Creek Ridge (4112387), Slater Butte (4112373), Willow Creek (4012386)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory