Taxon Report

Astragalus inversus Jones

Susanville milk-vetch

Print Report


©2021 Steve Matson

  Classification
Scientific Name:
 Astragalus inversus Jones
Common Name:
 Susanville milk-vetch
Family: Fabaceae
Element Code: PDFAB0F4A0
USDA Plants Symbol: ASIN7
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial herb
Blooming Period: May-Sep May-Sep
Elevation: 885-1850 (2905-6070)
General Habitats: Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland
Microhabitat: Disturbed areas (often)
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 4.3
Global Rank: G4
State Rank:
 S4
State List: None
Fed List: None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 0
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 0

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD), Shasta (SHA), Siskiyou (SIS)
Quads: Name (Quad Code)
Antelope Mtn. (4012058), Bieber (4112112), Bogard Buttes (4012152), Boles Meadows East (4112067), Bullard Lake (4012078), Burney (4012186), Burney Falls (4112116), Burney Mtn. East (4012175), Burney Mtn. West (4012176), Cassel (4012185), Champs Flat (4012068), Corders Reservoir (4012172), Crank Mountain (4112142), Dana (4112115), Day (4112123), Donica Mtn. (4112132), East of Pondosa (4112125), Egg Lake (4112133), Harvey Mtn. (4012161), Hogback Ridge (4012184), Hollenbeck (4112143), Indian Spring Mtn. (4112135), Jellico (4012173), Johnstonville (4012045), Manzanita Lake (4012155), Old Station (4012164), Pine Creek Valley (4012151), Pittville (4112113), Poison Lake (4012162), Pondosa (4112126), Rimrock Lake (4112162), Roop Mountain (4012047), Snag Hill (4112146), Spalding Tract (4012067), Spaulding Butte (4112152), Susanville (4012046), Swains Hole (4012163), Timbered Crater (4112124), Viola (4012156), West Prospect Peak (4012154), Whitehorse (4112134)

Threat List Data from the CNDDB

Threat List Total: 0
EOs with Threat Listed: Total EOs % of EOs
0 0 %

Notes
Possibly threatened by vehicles, grazing, fire, logging, and pipeline construction.
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 7 January 2025].