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Eriastrum densifolium
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Shrubby Eriastrum
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Eriastrum densifolium
  

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About Shrubby Eriastrum (Eriastrum densifolium) Eriastrum densifolium is a species of flowering plant in the phlox family known by the common name giant woollystar. This wildflower is native to California and Baja California where it grows in open areas such as sand dunes and dry washes. It grows on an erect stem with slightly hairy to densely woolly foliage, often giving the plant a dark gray-green color. The leaves are narrow and spike-shaped with pointed lobes. The top of each stem is occupied by a bunched flower cluster full of woolly leaflike leafs and funnel-shaped, flat-faced flowers. The flowers are each 1 to 3 centimeters long with a face up to three or four centimeters wide. The lobes are white to bright, striking blue, sometimes with longitudinal pinstripes. The stamens protrude from the throat.
Plant Description
Plant Type
Perennial herb

Flower Color
Purple, Lavender

Flowering Season
Spring, Summer, Fall
Spring
Summer
Fall
Winter


Native Status
Native

Natural Setting
Site Type
Dunes, dry riverbeds, open slopes

Sun
Sun

Elevation ?
3' - 9897'

Annual Precip. ?
4.8" - 51.2"

Summer Precip. ?
0.16" - 3.21"

Coldest Month ?
26.0° F - 57.6° F

Hottest Month ?
46.9° F - 86.2° F

Humidity ?
0.74 vpd - 37.09 vpd

Drainage
Fast

Landscaping Information
Water Requirement ?
Extremely Low, Very Low
Extremely Low
Very Low
Low
Moderate - High


Propagation ?
For propagating by seed: No treatment.

Nursery Availability
Sometimes Available

Other Names
Common Names
Giant Woollystar


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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