CNPS Inventory Plant Detail

Clarkia biloba ssp. australis

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

Biology
Lifeform: annual herb Blooming Period: May - July Habitat: serpentinite. • Chaparral • Cismontane woodland

Rarity Status

CA 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: S2.2
S2: Imperiled.
.2: Threatened.
Global Rank: G4G5T2
T2: Imperiled. G4: (species) Apparently secure, considering populations outside California. G5: (species) Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 27
Element Occurrence Ranks:

A B C D X U

6 4 4 0 0 13

Population Status:

Historic >20 yrs	Recent <=20 yrs
7	20

Presence:

Present Extant	Possibly Extirpated	Extirpated
27	0	0

Notes
Threatened by road maintenance 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: 2012-07-31

Location

Elevation: 300 - 1460 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
El Dorado (ELD), 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, Duckwall Mtn. (457A)? 37120H1, Tuolumne (457B) 37120H2, Groveland (457C) 37120G2, Jawbone Ridge (457D) 37120G1, Sonora (458B) 37120H4, 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
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-120.0,37.75