Species Details

Clarkia biloba ssp. australis

Mariposa clarkia

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Scientific Name:
Clarkia biloba (Durand) Nels. & Macbr. ssp. australis Lewis & Lewis
Common Name:
Mariposa clarkia
Family: Onagraceae
Element Code: PDONA05051
USDA Plants Symbol: CLBIA
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G4G5T3
State Rank:
S3
Other Status: SB_CalBG/RSABG; SB_SBBG; USFS_S
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2022-12-06
Lifeform: annual herb
Blooming Period: Apr-Jul
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Elevation:
300 - 1460 meters
985 - 4790 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
Microhabitat Details:
Microhabitat:
  • Serpentine
Notes:
Threatened by road maintenance, foot traffic and non-native plants.
Threats:
Taxonomy:
Threat List Total: 15
Total EOs % of EOs
EOs with Threat Listed: 82 69 %
THREAT LIST:
Non-native plant impacts 43 36%
Road/trail construction/maint. 31 26%
Erosion/runoff 24 20%
Grazing 19 15%
Altered flood/tidal/hydrologic regime 18 15%
Total Occurrences: 119
Element Occurrence Ranks:
A B C D X U
9 24 6 1 0 79
Occurrence Status:
Historical >20 Years 16
Recent <=20 Years 103
Presence:
Presumed Extant 119
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Mariposa (MPA), Tuolumne (TUO)
Quads: Name (Quad Code)
Ascension Mtn. (3711978), Bear Valley (3712051), Cherry Lake South (3711988), Chinese Camp (3712074), Coulterville (3712062), Crandall Peak (3812022), Duckwall Mtn. (3712081)?, Feliciana Mtn. (3711958), Groveland (3712072), Hornitos (3712052), Hull Creek (3812011), Jawbone Ridge (3712071), Kinsley (3711968), Mariposa (3711948), Merced Falls (3712053), Penon Blanco Peak (3712063), Sonora (3712084), Tuolumne (3712082), Twain Harte (3812012)
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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