Calystegia collina ssp. venusta
Common Name: South Coast Range morning-glory
Family: Convolvulaceae
Element Code: PDCON04034
Full Name: Calystegia collina (Greene) Brummitt ssp. venusta Brummitt

© 2005 Dieter Wilken
Biology Glossary
  • Lifeform: perennial rhizomatous herb
  • Blooming Period: April - June
  • Habitat: serpentinite or sedimentary.
    • Chaparral
    • Cismontane woodland
    • Valley and foothill grassland
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences:
  • Element Occurrence Ranks:
    A B C D X U
  • Population Status:
    >20 yrs
    <=20 yrs
  • Presence:
    Present Extant Possibly Extirpated Extirpated
Notes Glossary
  • Can be relatively abundant and tolerant of disturbance. 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: 2011-02-17
Location Glossary
  • Elevation: 425 - 1490 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Fresno (FRE),  Monterey (MNT),  Santa Barbara (SBA),  San Benito (SBT),  Santa Clara (SCL)
  • Quads:   name (DWR code) USGS code
    Figueroa Mtn. (168B) 34119F8,  Los Olivos (169A) 34120F1,  Bald Mountain (193C) 34119G8,  The Dark Hole (292A) 35120H3,  Parkfield (292B) 35120H4,  Curry Mountain (315C) 36120A4,  Priest Valley (316B) 36120B6,  Monarch Peak (317A) 36120B7,  Idria (339B) 36120D6,  San Benito Mtn. (339C) 36120C6,  Santa Rita Peak (339D) 36120C5,  Hernandez Reservoir (340A) 36120D7,  Rock Spring Peak (340B) 36120D8,  Lonoak (340C) 36120C8,  Hepsedam Peak (340D) 36120C7,  Llanada (362C) 36120E8,  Panoche Pass (363A) 36121F1,  Bickmore Canyon (363C) 36121E2,  Santa Teresa Hills (407A) 37121B7,  Detert Reservoir (517A) 38122F5
  • 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those that do contain this data, it has not been quality controlled and is potentially incomplete, inaccurate, and/or out of date.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 64
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 [accessed ].

34119F8=Figueroa Mtn. (168B) 34119F8;34120F1=Los Olivos (169A) 34120F1;34119G8=Bald Mountain (193C) 34119G8;35120H3=The Dark Hole (292A) 35120H3;35120H4=Parkfield (292B) 35120H4;36120A4=Curry Mountain (315C) 36120A4;36120B6=Priest Valley (316B) 36120B6;36120B7=Monarch Peak (317A) 36120B7;36120D6=Idria (339B) 36120D6;36120C6=San Benito Mtn. (339C) 36120C6;36120C5=Santa Rita Peak (339D) 36120C5;36120D7=Hernandez Reservoir (340A) 36120D7;36120D8=Rock Spring Peak (340B) 36120D8;36120C8=Lonoak (340C) 36120C8;36120C7=Hepsedam Peak (340D) 36120C7;36120E8=Llanada (362C) 36120E8;36121F1=Panoche Pass (363A) 36121F1;36121E2=Bickmore Canyon (363C) 36121E2;37121B7=Santa Teresa Hills (407A) 37121B7;38122F5=Detert Reservoir (517A) 38122F5