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Shrubby Eriastrum
Eriastrum densifolium
About Shrubby Eriastrum (Eriastrum densifolium) 2 Nurseries Carry This Plant 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
Plant Type
Perennial herb

Flower Color
Flower Color
Purple, Lavender

Flowering Season
Flowering Season
Spring, Summer, Fall

Wildlife Supported

Butterflies & moths hosted ( 2 likely * ) SHOW ALL

Landscaping Information
Full Sun

Extremely Low, Very Low


Soil Drainage
Soil Drainage

For propagating by seed: No treatment.

Natural Setting
Site Type
Site Type
Dunes, dry riverbeds, open slopes

Annual Precipitation: 4.8" - 51.2", Summer Precipitation: 0.16" - 3.21", Coldest Month: 26.0" - 57.6", Hottest Month: 46.9" - 86.2", Humidity: 0.74" - 37.09", Elevation: 3" - 9897"

Alternative Names
Common Names: Dense Eriastrum, 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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