Species Details

Streptanthus brachiatus ssp. brachiatus

Socrates Mine jewelflower

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Scientific Name:
Streptanthus brachiatus F.W. Hoffm. ssp. brachiatus
Common Name:
Socrates Mine jewelflower
Family: Brassicaceae
Element Code: PDBRA2G072
USDA Plants Symbol: STBRB
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Jun
Elevation:
545 - 1000 meters
1790 - 3280 feet
General Habitat:
  • Closed-cone coniferous forest
  • Chaparral
General Micro Habitat:
Micro Habitat:
  • Serpentinite (usually)
Notes:
Known from fewer than ten occurrences. Plants from LAK Co. (517B, 533C) are more appropriately assigned to S. brachiatus ssp. hoffmanii. Possibly threatened by alteration of fire regimes. See MadroƱo 36(1):36 (1989) for revised nomenclature.
Threats:
Taxonomy:
Other:
Total Occurrences: 10
Element Occurrence Ranks:
A B C D X U
1 3 0 0 0 6
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 2
Presence:
Presumed Extant 10
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Lake (LAK), Napa (NAP), Sonoma (SON)
Quads: Name (Quad Code)
Detert Reservoir (3812265), The Geysers (3812277), Whispering Pines (3812276)
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