Species Details

Clarkia borealis ssp. arida

Shasta clarkia

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Scientific Name:
Clarkia borealis E. Small ssp. arida E. Small
Common Name:
Shasta clarkia
Family: Onagraceae
Element Code: PDONA05061
USDA Plants Symbol: CLBOA
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Jun-Aug
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Elevation:
490 - 595 meters
1610 - 1950 feet
General Habitats:
  • Cismontane woodland
  • Lower montane coniferous forest (openings)
Microhabitat Details:
Microhabitat:
Notes:
Known from fewer than 10 occurrences near Shingletown. Very similar to ssp. borealis; study needed. See Canadian Journal of Botany 49:1211-1217 (1971) for original description.
Threats:
Taxonomy:
Threat List Total: 1
Total EOs % of EOs
EOs with Threat Listed: 2 33 %
THREAT LIST:
Road/trail construction/maint. 2 33%
Total Occurrences: 6
Element Occurrence Ranks:
A B C D X U
1 1 0 0 0 4
Occurrence Status:
Historical >20 Years 6
Recent <=20 Years 0
Presence:
Presumed Extant 6
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA), Tehama (TEH)
Quads: Name (Quad Code)
Clough Gulch (4012251), Devils Rock (4012271), Inskip Hill (4012138)?, Oak Run (4012261), Shingletown (4012148)
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.
Presumed Extant
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