CNPS Inventory Plant Detail

Astragalus serenoi var. shockleyi

Common Name:	Shockley's milk-vetch
Family:	Fabaceae
Synonyms:
Element Code:	PDFAB0F802
Full Name:	Astragalus serenoi (Kuntze) Sheld. var. shockleyi (Jones) Barneby
USDA PLANTS Symbol:	ASSES4

Biology
Lifeform: perennial herb Blooming Period: May - July Habitat: alkaline, granitic alluvium. • Chenopod scrub • Great Basin scrub • Pinyon and juniper woodland

Rarity Status
CA Rare Plant Rank: 2.2 Rare, threatened, or endangered in California, but more common elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G4T3 T3: Vulnerable. G4: (species) Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 17
Element Occurrence Ranks:

A B C D X U

0 1 2 1 0 13

Population Status:

Historic >20 yrs	Recent <=20 yrs
10	7

Presence:

Present Extant	Possibly Extirpated	Extirpated
17	0	0

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. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1988-01-01 Last Update: 2011-07-25

Location

Elevation: 1500 - 2320 meters

California Endemic: no

States: California, Nevada

California Counties and Islands: name (code)
Inyo (INY), Mono (MNO)

Quads: name (DWR code) USGS code
New York Butte (350B) 36117F8, Dolomite (350C) 36117E8, White Top Mtn. (369C) 36117G4, Joshua Flats (391B) 37117B8, Waucoba Spring (391C) 37117A8, Cowhorn Valley (392A) 37118B1, Uhlmeyer Spring (392B) 37118B2, Tinemaha Reservoir (392C) 37118A2, Waucoba Mtn. (392D) 37118A1, Last Chance Mtn. (410C) 37117C6, Soldier Pass (411C) 37117C8, Horse Thief Canyon (411D) 37117C7, Blanco Mtn. (412B) 37118D2, Westgard Pass (412C) 37118C2, Poleta Canyon (413D) 37118C3, Dyer (431A) 37118F1, Juniper Mtn. (431B) 37118F2, Station Peak (431D) 37118E1

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

339

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-118.0,37.125