Species Details

Calystegia stebbinsii

Stebbins' morning-glory

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Classification

Scientific Name: Calystegia stebbinsii Brummitt
Common Name: Stebbins' morning-glory
Family:	Convolvulaceae
Element Code:	PDCON040H0
USDA Plants Symbol:	CAST21
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	FE (1996-10-18)
State List:	CE (1981-08-01)
Global Rank:	G1
State Rank:	S1
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2021-10-04

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Apr-Jul

Elevation:
185 - 1090 meters
605 - 3575 feet

General Habitats:

Chaparral (openings)
Cismontane woodland

Microhabitat Details:

Microhabitat:

Gabbroic (sometimes)
Seeps (sometimes)

Notes

Notes: Threatened by development, vehicles, road maintenance, clearing, and alteration of fire regimes; possibly threatened by non-native plants. See Kew Bulletin 29:499 (1975) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	11
	Total EOs	% of EOs
EOs with Threat Listed:	14	93 %
Development	14	93%
Road/trail construction/maint.	7	46%
Non-native plant impacts	5	33%
Vandalism/dumping/litter	4	26%
ORV activity	3	20%
Improper burning regime	2	13%
Biocides	2	13%
Landfill	1	6%
Erosion/runoff	1	6%
Foot traffic/trampling	1	6%
Recreational use (non-ORV)	1	6%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					15
A	B	C	D	X	U
1	2	7	1	4	0

Occurrence Status:
Historical >20 Years	5
Recent <=20 Years	10

Presence:
Presumed Extant	11
Possibly Extirpated	3
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
El Dorado (ELD), Nevada (NEV)

Quads: Name (Quad Code)
Coloma (3812078), Grass Valley (3912121), Pilot Hill (3812171), Rough And Ready (3912122), Shingle Springs (3812068)

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