Species Details

Camissonia integrifolia

Kern River evening-primrose

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Classification

Scientific Name: Camissonia integrifolia Raven
Common Name: Kern River evening-primrose
Family:	Onagraceae
Element Code:	PDONA030T0
USDA Plants Symbol:	CAIN22
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2023-06-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: (Apr)May

Elevation:
700 - 1200 meters
2295 - 3935 feet

General Habitats:

Chaparral
Mojavean desert scrub

Microhabitat Details: Toeslopes and terraces along drainages

Microhabitat:

Openings
Sandy

Notes

Notes: Rediscovered to science in 2015 after many decades without observation.
Threats: Potentially threatened by road maintenance.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	2	33 %
Foot traffic/trampling	1	16%
Road/trail construction/maint.	1	16%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					6
A	B	C	D	X	U
0	0	1	0	0	5

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	2

Presence:
Presumed Extant	6
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Kern (KRN)

Quads: Name (Quad Code)
Cane Canyon (3511852), Horse Canyon (3511851), Miracle Hot Springs (3511855), Onyx (3511862), Weldon (3511863), Woolstalf Creek (3511853)

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.

Regional Map

Map

Presumed Extant

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Selected References

Original Description:	Contributions from the U.S. National Herbarium 37(5): 344 (1969)
Other:	Fremontia 43(3): 24-25 (2015) [notes on rediscovery]