CNPS

CNPS Rare Plant Inventory

Species Details

Calystegia macrostegia ssp. amplissima

island morning-glory

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  Classification

Scientific Name:
Calystegia macrostegia (Greene) Brummitt ssp. amplissima Brummitt
Common Name:
island morning-glory
Family: Convolvulaceae
Element Code: PDCON04081
USDA Plants Symbol: CAMAA
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 4.3
Fed List: None
State List: None
Global Rank: G4G5T4
State Rank:
 S4
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1984-01-01
Date Edited: 2021-09-27

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: Feb-Jul
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Elevation:
10 - 275 meters
35 - 900 feet
General Habitats:
  • Coastal bluff scrub
  • Coastal dunes
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Rocky

  Notes

Notes:
Relatively common and widespread where it occurs. See Kew Bulletin 35(2):327 (1980) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 0
Total EOs % of EOs
EOs with Threat Listed: 0 0 %
THREAT LIST:

  Occurrence Data from the CNDDB

Total Occurrences: 0
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presence:
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island North (3211885), San Clemente Island South (3211873), San Nicolas Island (3311924), Santa Barbara Island (3311848), Santa Catalina East (3311833), Santa Catalina South (3311834), Santa Cruz Island C (3311985)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 21 November 2024].