Species Details

Calystegia collina ssp. oxyphylla

Mt. Saint Helena morning-glory

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Scientific Name:
Calystegia collina (Greene) Brummitt ssp. oxyphylla Brummitt
Common Name:
Mt. Saint Helena morning-glory
Family: Convolvulaceae
Element Code: PDCON04032
USDA Plants Symbol: CACOO
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: Apr-Jun
Elevation:
279 - 1010 meters
915 - 3315 feet
General Habitat:
  • Chaparral
  • Lower montane coniferous forest
  • Valley and foothill grassland
General Micro Habitat:
Micro Habitat:
  • Serpentinite
Notes:
Threatened by road maintenance. Potentially threatened by wind energy development. See Kew Bulletin 35(2):328 (1980) for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 9
Element Occurrence Ranks:
A B C D X U
2 2 0 0 0 5
Occurrence Status:
Historical >20 Years 9
Recent <=20 Years 0
Presence:
Presumed Extant 9
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Colusa (COL), Lake (LAK), Marin (MRN), Mendocino (MEN), Napa (NAP), San Benito (SBT), Sonoma (SON)
Quads: Name (Quad Code)
Aetna Springs (3812264), Bartlett Springs (3912226), Cazadero (3812351), Chiles Valley (3812253), Cloverdale (3812371), Detert Reservoir (3812265), Duncans Mills (3812341), Fort Ross (3812352), Highland Springs (3812288), Hopland (3812381), Hough Springs (3912225), Jimtown (3812267), Kenwood (3812245), Leesville (3912224), Mark West Springs (3812256), Middletown (3812275), Mount St. Helena (3812266), San Benito Mtn. (3612036), San Rafael (3712285), The Geysers (3812277), Warm Springs Dam (3812361), Whispering Pines (3812276), Wilbur Springs (3912214)
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.

Map

Presumed Extant
Counties   Quads