Calystegia collina ssp. oxyphylla
Common Name: Mt. Saint Helena morning-glory
Family: Convolvulaceae
Synonyms:
Element Code: PDCON04032
Full Name: Calystegia collina (Greene) Brummitt ssp. oxyphylla Brummitt
USDA PLANTS Symbol: CACOO

© 1990 John Game
Biology Glossary
  • Lifeform: perennial rhizomatous herb
  • Blooming Period: April - June
  • Habitat: serpentinite.
    • Chaparral
    • Lower montane coniferous forest
    • Valley and foothill grassland
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 9
  • Element Occurrence Ranks:
    A B C D X U
    2 2 0 0 0 5
  • Population Status:
    Historic
    >20 yrs
    Recent
    <=20 yrs
    8 1
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    9 0 0
Notes Glossary
  • Threatened by road maintenance. Potentially threatened by wind energy development. See Kew Bulletin 35(2):328 (1980) for original description.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1984-01-01
  • Last Update: 2011-10-06
Location Glossary
  • Elevation: 279 - 1010 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Lake (LAK),  Mendocino (MEN),  Marin (MRN),  Napa (NAP),  San Benito (SBT),  Sonoma (SON)
  • Quads:   name (DWR code) USGS code
    San Benito Mtn. (339C) 36120C6,  Aetna Springs (516B) 38122F4,  Chiles Valley (516D) 38122E3,  Detert Reservoir (517A) 38122F5,  Mark West Springs (517C) 38122E6,  Jimtown (518A) 38122F7,  Fort Ross (519C) 38123E2,  Whispering Pines (533C) 38122G6,  Middletown (533D) 38122G5,  Highland Springs (534B) 38122H8,  The Geysers (534D) 38122G7,  Hopland (535A) 38123H1,  Cloverdale (535D) 38123G1,  Leesville (547B) 39122B4,  Wilbur Springs (547C) 39122A4,  Hough Springs (548A) 39122B5,  Bartlett Springs (548B) 39122B6
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Quad data is not available for all List 3 and 4 plants. For those that do contain this data, it has not been quality controlled and is potentially incomplete, inaccurate, and/or out of date. Please use caution when referencing this information. We are currently working hard to maintain this data and hope to provide accurate and up to date information in the near future.
Presumed Extant Presumed Extirpated or Unknown 63
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].
-122.375,38.625

CA
36120C6=San Benito Mtn. (339C) 36120C6;38122F4=Aetna Springs (516B) 38122F4;38122E3=Chiles Valley (516D) 38122E3;38122F5=Detert Reservoir (517A) 38122F5;38122E6=Mark West Springs (517C) 38122E6;38122F7=Jimtown (518A) 38122F7;38123E2=Fort Ross (519C) 38123E2;38122G6=Whispering Pines (533C) 38122G6;38122G5=Middletown (533D) 38122G5;38122H8=Highland Springs (534B) 38122H8;38122G7=The Geysers (534D) 38122G7;38123H1=Hopland (535A) 38123H1;38123G1=Cloverdale (535D) 38123G1;39122B4=Leesville (547B) 39122B4;39122A4=Wilbur Springs (547C) 39122A4;39122B5=Hough Springs (548A) 39122B5;39122B6=Bartlett Springs (548B) 39122B6