Taxon Details

Camissoniopsis guadalupensis ssp. clementina

San Clemente Island evening-primrose

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Taxon Summary:

Camissoniopsis guadalupensis ssp. clementina, commonly known as San Clemente Island evening-primrose, is a annual herb in the Onagraceae that is found only in California. It occurs within Coastal dunes, growing at elevations from 0 to 30 meters. Camissoniopsis guadalupensis ssp. clementina is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Camissoniopsis guadalupensis (S. Watson) W.L. Wagner & Hoch ssp. clementina (P.H. Raven) W.L. Wagner & Hoch
Common Name: San Clemente Island evening-primrose
Family:	Onagraceae
Element Code:	PDONA030M1
USDA Plants Symbol:
Synonyms/Other Names: Camissonia guadalupensis ssp. clementina
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3T2
State Rank:	S2
Other Status:	SB_CalBG/RSABG; SB_CRES
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr-Jun

Elevation:
0 - 30 meters
0 - 100 feet

General Habitats:

Coastal dunes

Microhabitat Details:

Microhabitat:

Notes

Notes: See Aliso 5:332 (1963) for original description, Brittonia 16:284 (1964) for revised nomenclature, and Contributions from the U.S. National Herbarium 37(5):275 (1969) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	2	25 %
Development	1	12%
Non-native plant impacts	1	12%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					8
A	B	C	D	X	U
0	0	0	0	0	8

Occurrence Status:
Historical >20 Years	3
Recent <=20 Years	5

Presence:
Presumed Extant	8
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX)

Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island North (3211885), San Clemente Island South (3211873)

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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CNPS Rare Plant Inventory