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Astragalus pauperculus
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Depauperate Milkvetch
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Astragalus pauperculus

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About Depauperate Milkvetch (Astragalus pauperculus) Astragalus pauperculus is an uncommon species of milkvetch known by the common name depauperate milkvetch. It is endemic to northern California, where it is known from the northern Sacramento Valley and the lowest reaches of the Cascade foothills adjacent. It grows in chaparral and vernally wet grassland habitat. This is a very small annual milkvetch which grows in a delicate mat with stems no longer than 10 centimeters. The few leaves are a few centimeters long and are made up of small widely spaced leaflets. The inflorescence bears 2 to 7 flowers which are purple, sometimes with paler colored edges on their petals. Each flower is generally less than a centimeter long. The fruit is a crescent shaped legume pod between one and two centimeters long.
Plant Description
Plant Type
Annual herb

Max. Height
4 in (10.2 cm)

Flower Color

Native Status
Natural Setting
Elevation ?
58' - 5225'

Annual Precip. ?
23.4" - 63.0"

Summer Precip. ?
0.55" - 1.84"

Coldest Month ?
40.8° F - 51.9° F

Hottest Month ?
61.2° F - 75.6° F

Humidity ?
2.33 vpd - 25.80 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

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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