Isocoma arguta GreeneCarquinez goldenbush |
![]() © 2010 Doug Wirtz |
Scientific Name: |
Isocoma arguta Greene |
Common Name: |
Carquinez goldenbush |
Family: | Asteraceae |
Element Code: | PDAST57050 |
USDA Plants Symbol: | ISAR2 |
Synonyms/Other Names: |
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Lifeform: | perennial shrub |
Blooming Period: Aug-Dec | Aug-Dec |
Elevation: | 1-20 (5-65) |
General Habitats: | Valley and foothill grassland |
Microhabitat: | |
Microhabitat Details: |
CA Rare Plant Rank: | 1B.1 |
Global Rank: | G1 |
State Rank: |
S1 |
State List: | None |
Fed List: | None |
Other Status: | SB_UCBG |
CRPR Changes: |
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Total Occurrences: | 14 |
Element Occurrence Ranks: | |
Excellent (A) | 0 |
Good (B) | 4 |
Fair (C) | 3 |
Poor (D) | 0 |
None (X) | 0 |
Unknown (U) | 7 |
California Endemic: True | |
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) |
Threat List Total: | 7 | |
EOs with Threat Listed: | Total EOs | % of EOs |
8 | 57 % | |
Grazing | 3 | 21% |
Road/trail construction/maint. | 3 | 21% |
Other | 1 | 7% |
Recreational use (non-ORV) | 1 | 7% |
Agriculture | 1 | 7% |
Biocides | 1 | 7% |
Development | 1 | 7% |
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Threats: |
Threatened by grazing and trampling at Jepson Prairie Preserve. Threatened by development and agriculture elsewhere. |
Taxonomy: |
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. |