Species Details

Clarkia biloba ssp. brandegeeae

Brandegee's clarkia

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Scientific Name:
Clarkia biloba (Durand) Nels. & Macbr. ssp. brandegeeae (Jeps.) Lewis & Lewis
Common Name:
Brandegee's clarkia
Family: Onagraceae
Element Code: PDONA05053
USDA Plants Symbol: CLBIB
Synonyms/Other Names:
CA Rare Plant Rank: 4.2
Fed List: None
State List: None
Global Rank: G4G5T4
State Rank:
Other Status:
CRPR Changes:
changed from 1B.2 to 4.2 on 2012-10-29
changed from 1B.2 to 1B.2 on 2009-04-30
Add Date: 2001-01-01
Date Edited: 2022-11-29
Lifeform: annual herb
Blooming Period: (Mar)May-Jul
75 - 915 meters
245 - 3000 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
General Micro Habitat: often roadcuts
Micro Habitat:
  • Roadsides (often)
Previously CRPR 1B.2; more common than originally known. Threatened by weed control measures, non-native plants, road maintenance, fire suppression, and development. See University of California Publications in Botany 2:334 (1907) for original description and 20(4):323 (1955) for revised nomenclature.
Total Occurrences: 89
Element Occurrence Ranks:
13 32 11 3 0 30
Occurrence Status:
Historical >20 Years 29
Recent <=20 Years 60
Presumed Extant 89
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Butte (BUT), El Dorado (ELD), Nevada (NEV), Placer (PLA), Sacramento (SAC), Sierra (SIE), Yuba (YUB)
Quads: Name (Quad Code)
Auburn (3812181), Aukum (3812056), Bangor (3912144), Camino (3812066), Camp Far West (3912113), Camptonville (3912141), Chicago Park (3912028), Clarksville (3812161), Colfax (3912018), Coloma (3812078), Dutch Flat (3912027), Fiddletown (3812057), Folsom (3812162), Forbestown (3912153), Foresthill (3912017), French Corral (3912132), Garden Valley (3812077), Gold Hill (3812182), Grass Valley (3912121), Greenwood (3812088), Lake Combie (3912111), Latrobe (3812058), Michigan Bluff (3912016), Nevada City (3912131), North Bloomfield (3912038), Oregon House (3912133), Oroville (3912155), Oroville Dam (3912154), Pike (3912048), Pilot Hill (3812171), Placerville (3812067), Rackerby (3912143), Rocklin (3812172), Rough And Ready (3912122), Shingle Springs (3812068), Slate Mtn. (3812076), Smartville (3912123), Wolf (3912112)
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
Counties   Quads