CNPS Inventory Plant Detail

Clarkia jolonensis

Common Name:	Jolon clarkia
Family:	Onagraceae
Synonyms:
Element Code:	PDONA050L0
Full Name:	Clarkia jolonensis Parnell
USDA PLANTS Symbol:	CLJO2

Biology
Lifeform: annual herb Blooming Period: April - June Habitat: • Chaparral • Cismontane woodland • Coastal scrub • Riparian 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: G2 G2: Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 21
Element Occurrence Ranks:

A B C D X U

0 1 0 0 0 20

Population Status:

Historic >20 yrs	Recent <=20 yrs
20	1

Presence:

Present Extant	Possibly Extirpated	Extirpated
21	0	0

Notes
Can be confused with C. lewisii. Threatened by grazing. Possibly threatened by foot traffic and non-native plants. See Madroño 20(6):322 (1970) for original description. 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: 2010-03-15

Location

Elevation: 20 - 660 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Monterey (MNT)

Quads: name (DWR code) USGS code
Hames Valley (294B) 35120H8, Williams Hill (295A) 35121H1, Jolon (295B) 35121H2, San Lucas (318A) 36121B1, Thompson Canyon (318B) 36121B2, Cosio Knob (318C) 36121A2, Reliz Canyon (319A) 36121B3, Junipero Serra Peak (319B) 36121B4, Cone Peak (319C) 36121A4, Tassajara Hot Springs (320A) 36121B5, Partington Ridge (320B) 36121B6, Pfeiffer Point (320E) 36121B7, North Chalone Peak (341B) 36121D2, Soledad (342A) 36121D3, Sycamore Flat (342C) 36121C4, Paraiso Springs (342D) 36121C3, Chews Ridge (343D) 36121C5, Soberanes Point (344B) 36121D8, Big Sur (344D) 36121C7, Monterey (366C) 36121E8, Seaside (366D) 36121E7

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

164

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 .

-121.375,36.125