CNPS Inventory Plant Detail

Astragalus tidestromii

Common Name:	Tidestrom's milk-vetch
Family:	Fabaceae
Synonyms:
Element Code:	PDFAB0F8X0
Full Name:	Astragalus tidestromii (Rydb.) Clokey
USDA PLANTS Symbol:	ASTI

Biology
Lifeform: perennial herb Blooming Period: April - July Habitat: carbonate, sandy or gravelly. • Mojavean desert scrub

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: G4G5 G4: Apparently secure, considering populations outside California. G5: Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 59
Element Occurrence Ranks:

A B C D X U

2 17 13 3 0 24

Population Status:

Historic >20 yrs	Recent <=20 yrs
8	51

Presence:

Present Extant	Possibly Extirpated	Extirpated
59	0	0

Notes
Threatened by mining and solar energy development. Possibly threatened by vehicles, road maintenance, and non-native plants. Similar to A. layneae. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 2009-01-06 Last Update: 2013-01-30

Location

Elevation: 600 - 1585 meters

California Endemic: no

States: California, Nevada

California Counties and Islands: name (code)
Inyo (INY), San Bernardino (SBD)

Quads: name (DWR code) USGS code
Big Bear City (131D) 34116C7, Mineral Hill (225B) 35115D4, Mescal Range (226A) 35115D5, Valley Wells (226B) 35115D6, Cima Dome (226D) 35115C5, Solomons Knob (227A) 35115D7, Turquoise Mtn. (227B) 35115D8, Ivanpah Lake (248C) 35115E4, Mesquite Lake (249A) 35115F5, Mesquite Mountains (249B) 35115F6, Pachalka Spring (249C) 35115E6, Clark Mtn. (249D) 35115E5, East of Kingston Peak (250A) 35115F7, Kingston Spring (250C) 35115E8, East of Kingston Spring (250D) 35115E7, Stump Spring, Nev. (274A) 35115H7, Calvada Springs (274B) 35115H8, Horse Thief Springs (274C) 35115G8, Blackwater Mine (274D) 35115G7, North of Tecopa Pass (275A) 35116H1, Mound Spring (297C) 36115A8, Nopah Peak (298D) 36116A1

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

3357

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 .

-115.75,35.5