Species Details

Arabis rigidissima var. demota

Galena Creek rockcress

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Scientific Name:
Arabis rigidissima Rollins var. demota Rollins
Common Name:
Galena Creek rockcress
Family: Brassicaceae
Element Code: PDBRA061R1
USDA Plants Symbol: ARRID
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Jul-Aug
Elevation:
2255 - 2560 meters
7400 - 8400 feet
General Habitat:
  • Broadleafed upland forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Rocky
Notes:
Threatened by logging and fuel reduction projects. On watch list in NV. Not in TJM (1993) and TJM 2. See Journal of the Arnold Arboretum 64:498 (1983) for original description, and Novon 13(4):381-391 (2003) for revised nomenclature.
Threats:
Threatened by logging and fuel reduction projects.
Taxonomy:
Not in TJM (1993) and TJM 2.
Other:
On watch list in NV.
Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
1 0 5 0 0 1
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 6
Presence:
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
El Dorado (ELD), Placer (PLA)
Quads: Name (Quad Code)
Martis Peak (3912031), South Lake Tahoe (3811988), Tahoe City (3912022)
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