Species Details

Isocoma arguta

Carquinez goldenbush

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Notes:
Threatened by grazing and trampling at Jepson Prairie Preserve. Treatened by development and agriculture elsewhere. See Manual of the Botany of the Region of San Francisco Bay, p. 175 (1894) by E. Greene for original description, and Phytologia 70(2):69-114 (1991) for taxonomic treatment.
Threats:
Taxonomy:
Other:
Total Occurrences: 14
Element Occurrence Ranks:
A B C D X U
0 3 2 0 0 9
Occurrence Status:
Historical >20 Years 12
Recent <=20 Years 2
Presence:
Presumed Extant 14
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Contra Costa (CCA), Solano (SOL)
Quads: Name (Quad Code)
Benicia (3812212), Birds Landing (3812127), Briones Valley (3712282), Cordelia (3812222), Denverton (3812128), Dozier (3812137), Elmira (3812138), Mare Island (3812213), Vine Hill (3812211), Walnut Creek (3712281)
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.

Map

Presumed Extant
Counties   Quads