Taxon  Report   915    
Astragalus preussii  A. Gray  var. laxiflorus  A. Gray
Lancaster milk vetch,  Lancaster milkvetch
Astragalus preussii var. laxiflorus
© 2010 James M. Andre
Photos from
CalPhotos / Calflora
Astragalus preussii var. laxiflorus
© 2010 James M. Andre
Astragalus preussii var. laxiflorus
© 2010 James M. Andre
Astragalus preussii var. laxiflorus, a dicot, is a perennial herb that is native to California, Arizona, Nevada.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Astragalus preussii var. laxiflorus
© 2006 Trent M. Draper
Family: FABACEAE  
Genus: Astragalus
Parent: Astragalus preussii
Communities: Shadscale Scrub
Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Astragalus crotalariae var. davidsonii
More information about  Astragalus preussii var. laxiflorus
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 22, 2019).