CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record clarkia_jolonensis - Mon, Nov. 29, 2021 06:58 ET c
Clarkia jolonensis
common nameJolon clarkia
CalPhotos image
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life formannual herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (23):
Hames Valley (294B) 3512088, Williams Hill (295A) 3512181, Jolon (295B) 3512182, Cape San Martin (296B) 3512184, San Lucas (318A) 3612121, Thompson Canyon (318B) 3612122, Cosio Knob (318C) 3612112, Espinosa Canyon (318D) 3612111, Reliz Canyon (319A) 3612123, Junipero Serra Peak (319B) 3612124, Cone Peak (319C) 3612114, Tassajara Hot Springs (320A) 3612125, Partington Ridge (320B) 3612126, Pfeiffer Point (320E) 3612127, North Chalone Peak (341B) 3612142, Soledad (342A) 3612143, Sycamore Flat (342C) 3612134, Paraiso Springs (342D) 3612133, Chews Ridge (343D) 3612135, Soberanes Point (344B) 3612148, Big Sur (344D) 3612137, Monterey (366C) 3612158, Seaside (366D) 3612157
quad data info

Counties, states, regions:
Monterey (MNT)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Cismontane woodland (CmWld)
•Coastal scrub (CoScr)
•Riparian woodland (RpWld)
blooming period Apr-Jun  
elevation range20 - 660 meters
Can be confused with C. lewisii. Threatened by grazing. Possibly threatened by foot traffic and non-native plants. See Madroņo 20(6):322 (1970) for original description.
full nameClarkia jolonensis Parnell
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CLJO2 Element Code  PDONA050L0
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Mon, Nov. 29, 2021 from

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