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Eriastrum wilcoxii
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Wilcox's Woollystar
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Eriastrum wilcoxii

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About Wilcox's Woollystar (Eriastrum wilcoxii) Eriastrum wilcoxii is a species of flowering plant in the phlox family known by the common name Wilcox's woollystar. It is native to the western United States, where it grows in various types of desert and plateau habitat. It is an annual herb producing a thin, branching, usually woolly stem up to about 30 centimeters tall. The leaves are narrow and thready, up to 3 centimeters long, and sometimes divided into two or more lobes. The inflorescence is a woolly cluster of narrow, leaflike bracts laced with webby fibers. The small flowers have yellow throats and blue corollas with lobes up to half a centimeter long.
Plant Description
Plant Type
Annual herb

Max. Height
1.2 - 11.8 in (3 - 30 cm)

Native Status

Natural Setting
Elevation ?
671' - 11263'

Annual Precip. ?
4.7" - 56.0"

Summer Precip. ?
0.23" - 4.04"

Coldest Month ?
22.4° F - 50.9° F

Hottest Month ?
43.0° F - 80.2° F

Humidity ?
0.80 vpd - 31.83 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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