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Astragalus crotalariae
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Salton Milkvetch
( Astragalus crotalariae )
Astragalus crotalariae
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Salton Milkvetch (Astragalus crotalariae)
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Astragalus crotalariae
is a species of milkvetch known by the common name Salton milkvetch. It is native to the Colorado Desert in California and other Sonoran Deserts in Arizona and northern Mexico. It grows in desert scrub habitat, including the Salton Sink in the Coachella Valley.
Astragalus crotalariae
is a bushy perennial herb growing to heights between 15 and 60 centimeters. It is roughly hairy and has an unpleasant scent. The leaves are up to 16 centimeters long and are made up of several pairs of thick oval-shaped to rounded leaflets. The open inflorescence bears up to 25 reddish purple flowers, each 2 to 3 centimeters long. The fruit is an inflated legume pod up to 3 centimeters long. It is usually roughly hairy and dries to a thick papery texture. Selenium. Like many other
Astragalus species
, this plant accumulates selenium from the soil. It has also been shown to harbor a selenium-metabolizing Bacillus species in its seed pods.
Plant Description
Plant Type
Perennial herb
Size
0.49 - 2 ft tall
Flower Color
Purple, Red
Wildlife Supported
Butterflies & moths hosted ( 4
confirmed
, 18
likely
* )
SHOW ALL
Gray Hairstreak
Strymon melinus
Strymon melinus
Queen Alexandra's Sulphur
Colias alexandra
Colias alexandra
Ceraunus Blue
Hemiargus ceraunus
Hemiargus ceraunus
Western Tailed-Blue
Cupido amyntula
Cupido amyntula
*
Painted Lady
Vanessa cardui
Vanessa cardui
*
Acmon Blue
Icaricia acmon
Icaricia acmon
*
Orange Sulphur
Colias eurytheme
Colias eurytheme
Landscaping Information
Natural Setting
Climate
Annual Precipitation: 2.5" - 25.7", Summer Precipitation: 0.27" - 1.65", Coldest Month: 43.5" - 59.9", Hottest Month: 64.7" - 89.2", Humidity: 1.40" - 40.23", Elevation: -232" - 3944"
Alternative Names
Common Names
: Salton Milk-vetch
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Salton Milkvetch
Astragalus crotalariae
Sources include:
Wikipedia
. All text shown in the "About" section of these pages is available under the
Creative Commons Attribution-ShareAlike License
. Plant observation data provided by the participants of the
California Consortia of Herbaria
, Sunset information provided by
Jepson Flora Project
. Propogation from seed information provided by the
Santa Barbara Botanical Garden
from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include
CalPhotos
,
Wikimedia Commons
, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include
Calflora
,
CNPS Manual of Vegetation Online
,
Jepson Flora Project
,
Las Pilitas
,
Theodore Payne
,
Tree of Life
,
The Xerces Society
, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from
PRISM Climate Group, Oregon State University
, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.
Links:
Jepson eFlora Taxon Page
CalPhotos
Wikipedia
Calflora
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