Species Details

Astragalus tener var. titi

coastal dunes milk-vetch

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Species Description:

Astragalus tener var. titi, commonly known as coastal dunes milk-vetch, is a annual herb in the Fabaceae that is found only in California. It occurs within Coastal bluff scrub (sandy), Coastal dunes, and Coastal prairie (mesic), growing at elevations from 1 to 50 meters. Astragalus tener var. titi is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Scientific Name:
Astragalus tener Gray var. titi (Eastw.) Barneby
Common Name:
coastal dunes milk-vetch
Family: Fabaceae
Element Code: PDFAB0F8R2
USDA Plants Symbol: ASTET
Synonyms/Other Names:
Name Status: JEP, FNA, POWO,
IPNI, Tropicos
CA Rare Plant Rank: 1B.1
Fed List: FE (1998-08-12)
State List: CE (1982-02-01)
Global Rank: G2T1
State Rank:
S1
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-06-08
Lifeform: annual herb
Blooming Period: Mar-May
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Elevation:
1 - 50 meters
5 - 165 feet
General Habitats:
  • Coastal bluff scrub (sandy)
  • Coastal dunes
  • Coastal prairie (mesic)
Microhabitat Details:
Microhabitat:
  • Mesic (often)
  • Vernally Mesic (often)
Notes:
Known from fewer than 10 occurrences. Threatened by urbanization, recreational activities, and non-native plants. See Bulletin of the Torrey Botanical Club 32:195-196 (1905) for original description, and Memoirs of the New York Botanical Garden 13:1048 (1964) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 6
Total EOs % of EOs
EOs with Threat Listed: 4 67 %
THREAT LIST:
Development 3 50%
Foot traffic/trampling 1 16%
Military operations 1 16%
Non-native plant impacts 1 16%
Recreational use (non-ORV) 1 16%
Total Occurrences: 6
Element Occurrence Ranks:
A B C D X U
0 1 0 0 3 2
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 1
Presence:
Presumed Extant 3
Possibly Extirpated 3
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX)*, Monterey (MNT), San Diego (SDG)(?)
Quads: Name (Quad Code)
Beverly Hills (3411814), Del Mar (3211782)(?), Inglewood (3311883)*, Monterey (3612158), Oceanside (3311724)(?), Point Loma (3211762)*, Topanga (3411815)
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.
Presumed Extant
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