FWS Focus

Overview

Characteristics
Overview

Stebbins’ morning-glory is a leafy herbaceous perennial vine in the morning-glory family. The species is restricted to the Pine Hill Preserve and immediate vicinity in El Dorado County and two sites near Grass Valley in Nevada County.

At the time of listing, Stebbins’ morning-glory occurred primarily on the Pine Hill formation in western El Dorado County, California, ranging in elevation from 453 to 2,060 feet. Stebbins’ morning-glory had a few known isolated occurrences in El Dorado, Nevada and Tuolumne counties.

Threats include alteration of the natural fire regime and encroachment of native plants due to succession. The long fire return interval due to fire suppression is preventing the formation of necessary clearings for Stebbins’ morning-glory establishment and possibly the scarification of seeds needed for their germination. 

Stebbins’ morning-glory was listed as endangered on October 18, 1996.

Scientific Name

Calystegia stebbinsii
Common Name
Stebbins' morning-glory
Stebbins' false bindweed
FWS Category
Flowering Plants
Kingdom

Location in Taxonomic Tree

Identification Numbers

TSN:

Characteristics

Characteristic category

Habitat

Characteristics
Habitat

Stebbins’ morning-glory is found in gabbro soils and is also known to occur on serpentine soils. Two of the three serpentine sites for Stebbins’ morning-glory in Nevada County are possibly extirpated, but the species continues to persist at one serpentine site in that county and an additional serpentine site near Shingle Springs in El Dorado County.

Grassland

Land on which the natural dominant plant forms are grasses and forbs.

Forest

A dense growth of trees and underbrush covering a large tract.

Rural

Environments influenced by humans in a less substantial way than cities. This can include agriculture, silviculture, aquaculture, etc.

Characteristic category

Life Cycle

Characteristics
Life Span

While an above-ground shoot may appear in the same spot for only several years, other portions of this plant’s extensive root system might survive much longer.

Reproduction

Flowering occurs from April through July and is insect pollinated, primarily by bees. Though initially thought to be an obligate seeding species, it seems to have the capability to recruit by seed or rhizomatous resprout after fire or other disturbance. Seeds require scarification or heat treatment for successful germination. It has a seedbank that may persist for over 60 years. Plants grow from seed rapidly and flower profusely 2-3 years after fire.

Characteristic category

Physical Characteristics

Characteristics
Size & Shape

Stebbins’ morning-glory has stems of up to 3.3 feet in length that generally lie flat on the ground or climb nearby vegetation and rocks. Leaves are palmately lobed with 7 to 9 lobes. White, creamy yellow, and sometimes pink-tinged flowers are on stalks 1 to 5 inches long and bear two leaf-like bracts in addition to being generally glabrous. Flowering occurs April through July.

Geography

Launch Interactive Map

Timeline

Explore the information available for this taxon's timeline. You can select an event on the timeline to view more information, or cycle through the content available in the carousel below.

13 Items

Listing

Listing

Listing

Listing

Listing

Listing

Listing

Listing

Listing

Recovery Plan

Five Year Review

Five Year Review

Five Year Review

1730
1740
1750
1760
1770
1780
1790
1800
1810
1820
1830
1840
1850
1860
1870
1880
1890
1900
1910
1920
1930
1940
1950
1960
1970
1980
1990
2000
2010
2020
2030
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
2140
2150
2160
2170
2180
2190
2200
2210
2220
2230
2240
2250
1951
1952
1953
1954
1955
1956
1957
1958
1959
1961
1962
1963
1964
1965
1966
1967
1968
1969
1971
1972
1973
1974
1975
1976
1977
1978
1979
1981
1982
1983
1984
1985
1986
1987
1988
1989
1991
1992
1993
1994
1995
1996
1997
1998
1999
2001
2002
2003
2004
2005
2006
2007
2008
2009
2011
2012
2013
2014
2015
2016
2017
2018
2019
2021
2022
2023
2024
2025
2026
2027
2028
2029
2031
2032
2033
2034
2035
2036
2037
2038
2039
2041
2042
2043
2044
2045
2046
2047

Listing

Jul 1, 1975

Jul 1, 1975 Listing
Review of Status of Vascular Plants
  • Publication type: CNOR
Item 1

Listing

Dec 15, 1980

Dec 15, 1980 Listing
Review of Plant Taxa for Listing as Endangered or Threatened Species
  • Publication type: CNOR
Item 2

Listing

Nov 28, 1983

Nov 28, 1983 Listing
Supplement to Review of Plant Taxa for Listing as End. or Thr. Species; 48 FR 53640-53670
  • Publication type: CNOR
Item 3

Listing

Sep 27, 1985

Sep 27, 1985 Listing
Review of Plant Taxa for Listing as End. or Thr. Species; Notice of Review; 50 FR 39526-39584
  • Publication type: CNOR
Item 4

Listing

Feb 21, 1990

Feb 21, 1990 Listing
ETWP; Review of Plant Taxa for Listing as Endangered or Threatened Species; Notice of Review; 55 FR…
  • Publication type: CNOR
Item 5

Listing

Sep 30, 1993

Sep 30, 1993 Listing
ETWP; Review of Plant Taxa for Listing as Endangered or Threatened Species
  • Publication type: CNOR
Item 6

Listing

Apr 20, 1994

Apr 20, 1994 Listing (Endangered)
ETWP; Proposed Endangered Status for Four Plants and Threatened Status for One Plant From the Centra…
  • Publication type: Proposed
Item 7

Listing

Feb 28, 1996

Feb 28, 1996 Listing
ETWP; Review of Plant and Animal Taxa That Are Candidates for Listing as Endangered or Threatened S…
  • Publication type: CNOR
Item 8

Listing

Oct 18, 1996

Oct 18, 1996 Listing (Endangered)
ETWP; Determination of Endangered Status for Four Plants and Threatened Status for One Plant From th…
  • Publication type: Final
Item 9

Recovery Plan

Dec 11, 2002

Dec 11, 2002 Recovery Plan (Document Availability (non-FR))
Notice of Availability of the Final Recovery Plan for Gabbro Soil Plants of the Central Sierra Nevad…
  • Publication type: Final
Item 10

Five Year Review

Mar 25, 2009

Mar 25, 2009 Five Year Review (Information Solicitation)
Initiation of 5-Year Reviews of 58 Species in California, Nevada, Arizona, and Utah; Availability of…
  • Publication type: Notice
Item 11

Five Year Review

Jun 18, 2018

Jun 18, 2018 Five Year Review (Information Solicitation)
Initiation of 5-Year Status Reviews of 50 Species in California, Nevada, and the Klamath Basin of Or…
  • Publication type: Notice
Item 12

Five Year Review

Aug 17, 2023

Aug 17, 2023 Five Year Review (Information Solicitation)
Endangered and Threatened Wildlife and Plants; Initiation of 5-Year Status Reviews of 47 Species in…
  • Publication type: Notice
Item 13