Taxon Report
Arnica cernua Howellserpentine arnica |
 © 2021 Scot Loring |
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 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: Apr-Jul | Apr-Jul |
| Elevation: | 500-1920 (1640-6300) |
| General Habitats: | Lower montane coniferous forest |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.3 |
| Global Rank: | G5 |
|
State Rank: |
S4 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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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 |
| California Endemic: False | |
| 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) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 15 January 2025].