Taxon Report

Astragalus lentiginosus Hook. var. borreganus Jones

Borrego milk-vetch

Print Report


Taxon Summary

Astragalus lentiginosus var. borreganus, commonly known as Borrego milk-vetch, is a annual herb in the Fabaceae that is found in California and elsewhere. It occurs within Mojavean desert scrub, and Sonoran desert scrub, growing at elevations from 30 to 895 meters. Astragalus lentiginosus var. borreganus is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

  Classification
Scientific Name:
 Astragalus lentiginosus Hook. var. borreganus Jones
Common Name:
 Borrego milk-vetch
Family: Fabaceae
Element Code: PDFAB0FB95
USDA Plants Symbol: ASLEB
Synonyms/Other Names:

Ecology and Life History
Lifeform: annual herb
Blooming Period: Feb-May Feb-May
Elevation: 30-895 (100-2935)
General Habitats: Mojavean desert scrub, Sonoran desert scrub
Microhabitat: Sandy
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 4.3
Global Rank: G5T5?
State Rank:
 S4
State List: None
Fed List: None
Other Status: SB_CalBG/RSABG; SB_USDA
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:  False
California Counties and Islands: Name (Code)
Imperial (IMP), Inyo (INY), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)
Quads: Name (Quad Code)
Grays Well (3211468), Grays Well NE (3211467), Acolita (3311512), Amos (3311513), Baker (3511631), Barstow (3411781), Beaumont (3311688), Borrego Mountain (3311622), Borrego Palm Canyon (3311634), Borrego Sink (3311623), Cabazon (3311687), Cactus (3211478), Cadiz Lake (3411534), Cadiz Valley SE (3411513), Cathedral City (3311674), Cave Mountain (3511613), Clark Lake (3311633), Cowhole Mountain (3511518), Cronese Lakes (3511623), Danby Lake (3411521), Desert (3511553), Dumont Dunes (3511662), East of Granite Pass (3411511), Fonts Point (3311632), Glamis (3211581), Glasgow (3411587), Kelso (3511516), Kelso Dunes (3411586), Kingston Peak (3511568), Myoma (3311673), New Dale (3411516), Nipton (3511543), North of Baker (3511641), Ogilby (3211477), Old Dad Mtn. (3511517), Palo Verde (3311446), Shell Reef (3311621), Soda Lake North (3511621), Soda Lake South (3511611), Trona East (3511773), Trona West (3511774), Tubb Canyon (3311624), White Horse Mtn. (3411658)

Threat List Data from the CNDDB

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

Notes
See Memoirs of the New York Botanical Garden 13:953-954 (1964) for revised nomenclature.
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 3 July 2025].