Species Details

Camissoniopsis hardhamiae

Hardham's evening-primrose

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Classification

Scientific Name: Camissoniopsis hardhamiae (P.H. Raven) W.L. Wagner & Hoch
Common Name: Hardham's evening-primrose
Family:	Onagraceae
Element Code:	PDONA030N0
USDA Plants Symbol:
Synonyms/Other Names: Camissonia hardhamiae

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	BLM_S; USFS_S
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2021-10-04

Ecology and Life History

Lifeform: annual herb
Blooming Period: Mar-May
Elevation: 140 - 945 meters 460 - 3100 feet
General Habitat: Chaparral Cismontane woodland
General Micro Habitat:
Micro Habitat: Burned areas (sometimes) Carbonate Disturbed areas (sometimes) Sandy

Notes

Notes: Threatened by proposed road construction in SLO Co; also threatened by grazing, mining, military activities, non-native plants, road maintenance, and vehicles. See Contributions from the U.S. National Herbarium 37(5):301 (1969) for original description.
Threats: Threatened by proposed road construction in SLO Co; also threatened by grazing, mining, military activities, non-native plants, road maintenance, and vehicles.
Taxonomy:
Other:

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					22
A	B	C	D	X	U
6	5	0	1	0	10

Occurrence Status:
Historical >20 Years	16
Recent <=20 Years	6

Presence:
Presumed Extant	22
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Monterey (MNT), San Luis Obispo (SLO)

Quads: Name (Quad Code)
Bear Canyon (3612113), Bradley (3512077), Camatta Ranch (3512043), Cosio Knob (3612112), Hames Valley (3512088), Morro Bay South (3512037), Pebblestone Shut-in (3512161), San Miguel (3512076), Santa Margarita (3512045), Santa Margarita Lake (3512034), Slack Canyon (3612016), Valleton (3512086), Wilson Corner (3512044)

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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Counties Quads

CNPS Rare Plant Inventory