Species Details

Camissoniopsis hardhamiae

Hardham's evening-primrose

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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:
Lifeform: annual herb
Blooming Period: Mar-May
JFMAMJJASOND
Elevation:
140 - 945 meters
460 - 3100 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
Microhabitat Details:
Microhabitat:
  • Burned areas (sometimes)
  • Carbonate
  • Disturbed areas (sometimes)
  • Sandy
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:
Threat List Total: 12
Total EOs % of EOs
EOs with Threat Listed: 11 50 %
THREAT LIST:
Other 8 36%
Road/trail construction/maint. 6 27%
Grazing 4 18%
Foot traffic/trampling 3 13%
Military operations 3 13%
Total Occurrences: 22
Element Occurrence Ranks:
A B C D X U
6 5 0 1 0 10
Occurrence Status:
Historical >20 Years 17
Recent <=20 Years 5
Presence:
Presumed Extant 22
Possibly Extirpated 0
Presumed Extirpated 0
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.
Presumed Extant
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