Taxon Details

Calystegia macrostegia ssp. amplissima

island morning-glory

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Taxon Summary:

Calystegia macrostegia ssp. amplissima, commonly known as island morning-glory, is a perennial herb in the Convolvulaceae that is found only in California. It occurs within Coastal bluff scrub, Coastal dunes, and Valley and foothill grassland, growing at elevations from 10 to 275 meters. Calystegia macrostegia ssp. amplissima is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

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:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

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

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
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

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CNPS Rare Plant Inventory