Species Details

Astragalus serenoi var. shockleyi

Shockley's milk-vetch

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Scientific Name:
Astragalus serenoi (Kuntze) Sheld. var. shockleyi (Jones) Barneby
Common Name:
Shockley's milk-vetch
Family: Fabaceae
Element Code: PDFAB0F802
USDA Plants Symbol: ASSES4
Synonyms/Other Names:
CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G4T3
State Rank:
S3
Other Status:
CRPR Changes:
changed from 2.2 to 2B.2 on 2013-06-12
Add Date: 1988-01-01
Date Edited: 2021-08-25
Lifeform: perennial herb
Blooming Period: (Apr)May-Jul
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Elevation:
1500 - 2320 meters
4920 - 7610 feet
General Habitats:
  • Chenopod scrub
  • Great Basin scrub
  • Pinyon and juniper woodland
Microhabitat Details: granitic alluvium
Microhabitat:
  • Alkaline
Notes:
Possibly threatened by vehicles. See Proceedings of the California Academy of Sciences II 5:659 (1895) for original description, and Brittonia 36(2):167-173 (1984) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 5 20 %
THREAT LIST:
ORV activity 4 16%
Recreational use (non-ORV) 1 4%
Erosion/runoff 1 4%
Mining 1 4%
Non-native plant impacts 1 4%
Total Occurrences: 25
Element Occurrence Ranks:
A B C D X U
0 1 2 1 0 21
Occurrence Status:
Historical >20 Years 12
Recent <=20 Years 13
Presence:
Presumed Extant 25
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)
Quads: Name (Quad Code)
Aberdeen (3611883), Big Pine (3711823), Blanco Mtn. (3711842), Cerro Gordo Peak (3611757), Chocolate Mtn. (3711748), Cowhorn Valley (3711821), Crooked Creek (3711841), Deep Springs Lake (3711831), Dolomite (3611758), Dyer (3711861), Juniper Mtn. (3711862), Last Chance Mtn. (3711736), New York Butte (3611768), Poleta Canyon (3711833), Soldier Pass (3711738), Station Peak (3711851), Tinemaha Reservoir (3711812), Uhlmeyer Spring (3711822), Union Wash (3611861), Waucoba Mtn. (3711811), Waucoba Spring (3711718), Westgard Pass (3711832), White Top Mtn. (3611774)
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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