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Astragalus asymmetricus
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San Joaquin Milk Vetch
( Astragalus asymmetricus )
Astragalus asymmetricus
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About San Joaquin Milk Vetch (Astragalus asymmetricus)
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Astragalus asymmetricus
is a species of milkvetch known by the common name San Joaquin milkvetch. It is endemic to California, where it grows in grassy and disturbed areas in the Central Valley and nearby parts of the Central Coast Ranges and San Francisco Bay Area. This is a sturdy perennial herb growing a thick, erect stem to heights between 50 and 120 centimeters. It is coated in long hairs. The leaves are up to 20 centimeters long and are made up of many pairs of leaflike leaflets, each up to 2.5 centimeters long and varying in shape from linear to oval. The flower cluster contains 15 to 45 cream-colored pealike flowers 1 to 2 centimeters long. The fruit is a slightly inflated hairy legume pod up to 4 centimeters long which hangs in bunches from the dried flower cluster.
Plant Description
Plant Type
Perennial herb
Size
1.6 - 3.9 ft tall
Flower Color
Cream
Wildlife Supported
Butterflies & moths hosted ( 24
likely
* )
SHOW ALL
*
Painted Lady
Vanessa cardui
Vanessa cardui
*
Acmon Blue
Icaricia acmon
Icaricia acmon
*
Orange Sulphur
Colias eurytheme
Colias eurytheme
*
Silvery Blue
Glaucopsyche lygdamus
Glaucopsyche lygdamus
*
Shasta Blue
Icaricia shasta
Icaricia shasta
*
Silver-Spotted Skipper
Epargyreus clarus
Epargyreus clarus
*
Melissa Blue
Plebejus melissa
Plebejus melissa
Landscaping Information
Sun
Full Sun, Part Shade
Natural Setting
Site Type
Grassy and open places
Climate
Annual Precipitation: 7.4" - 34.6", Summer Precipitation: 0.15" - 0.58", Coldest Month: 40.0" - 53.9", Hottest Month: 63.6" - 78.8", Humidity: 0.71" - 25.88", Elevation: 7" - 3652"
Alternative Names
Common Names
: San Joaquin Milk-vetch, San Joaquin Milkvetch
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San Joaquin Milk Vetch
Astragalus asymmetricus
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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