Clarkia biloba ssp. australis
Common Name: Mariposa clarkia
Family: Onagraceae
Element Code: PDONA05051
Full Name: Clarkia biloba (Durand) Nels. & Macbr. ssp. australis Lewis & Lewis

2007 Chris Winchell
Biology Glossary
Rarity Status Glossary
  • Rare Plant Rank: 1B.2
    Rare, threatened, or endangered in California and elsewhere
    .2: Fairly endangered in California
  • Federal Listing Status:
    Not Listed
  • State Listing Status:
    Not Listed
  • State Rank: S2S3
    S2: Imperiled. S3: Vulnerable.
  • Global Rank: G4G5T2T3
    T2: Imperiled. T3: Vulnerable. G4: (species) Apparently secure, considering populations outside California. G5: (species) Secure, considering populations outside California.
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 72
  • Element Occurrence Ranks:
    A B C D X U
    6 5 4 0 0 57
  • Population Status:
    >20 yrs
    <=20 yrs
    5 67
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    72 0 0
Notes Glossary
  • Threatened by road maintenance, foot traffic and non-native plants.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1980-01-01
  • Last Update: 2016-06-07
Location Glossary
  • Elevation: 300 - 1460 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Mariposa (MPA),  Tuolumne (TUO)
  • Quads:   name (DWR code) USGS code
    Mariposa (419B) 37119D8,  El Portal (438A) 37119F7,  Kinsley (438B) 37119F8,  Feliciana Mtn. (438C) 37119E8,  Coulterville (439B) 37120F2,  Hornitos (439C) 37120E2,  Bear Valley (439D) 37120E1,  Penon Blanco Peak (440A) 37120F3,  Merced Falls (440D) 37120E3,  Duckwall Mtn. (457A)? 37120H1,  Tuolumne (457B) 37120H2,  Jawbone Ridge (457D) 37120G1,  Sonora (458B) 37120H4,  Chinese Camp (458C) 37120G4,  Twain Harte (474C) 38120A2,  Hull Creek (474D) 38120A1
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Presumed Extant Presumed Extirpated or Unknown 492
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website [accessed ].

37119D8=Mariposa (419B) 37119D8;37119F7=El Portal (438A) 37119F7;37119F8=Kinsley (438B) 37119F8;37119E8=Feliciana Mtn. (438C) 37119E8;37120F2=Coulterville (439B) 37120F2;37120E2=Hornitos (439C) 37120E2;37120E1=Bear Valley (439D) 37120E1;37120F3=Penon Blanco Peak (440A) 37120F3;37120E3=Merced Falls (440D) 37120E3;37120H1=Duckwall Mtn. (457A)? 37120H1;37120H2=Tuolumne (457B) 37120H2;37120G1=Jawbone Ridge (457D) 37120G1;37120H4=Sonora (458B) 37120H4;37120G4=Chinese Camp (458C) 37120G4;38120A2=Twain Harte (474C) 38120A2;38120A1=Hull Creek (474D) 38120A1