Species Details

Streptanthus oliganthus

Masonic Mountain jewelflower

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Scientific Name:
Streptanthus oliganthus Roll.
Common Name:
Masonic Mountain jewelflower
Family: Brassicaceae
Element Code: PDBRA2G0V0
USDA Plants Symbol: STOL
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Jun-Jul
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Elevation:
1980 - 3050 meters
6495 - 10005 feet
General Habitats:
  • Pinyon and juniper woodland (granitic, rocky, volcanic)
Microhabitat Details:
Microhabitat:
Notes:
Known in CA from fewer than twenty occurrences. Threatened by mining, grazing, and vehicles. On watch list in NV. See Contributions from the Dudley Herbarium 3:372 (1946) for original description.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 5 24 %
THREAT LIST:
Erosion/runoff 1 4%
Improper burning regime 1 4%
Military operations 1 4%
Mining 1 4%
Road/trail construction/maint. 1 4%
Total Occurrences: 21
Element Occurrence Ranks:
A B C D X U
1 3 1 1 0 15
Occurrence Status:
Historical >20 Years 16
Recent <=20 Years 5
Presence:
Presumed Extant 21
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Alpine (ALP), Mono (MNO), Tuolumne (TUO)
Quads: Name (Quad Code)
Bridgeport (3811932), Chris Flat (3811944), Conway Stage Station (3811941), Dome Hill (3811931), Kirkwood Spring (3811828), Lundy (3811912), Mt. Patterson (3811943), Pickel Meadow (3811935), Sonora Pass (3811936), Sweetwater Creek (3811942)
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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