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Eriastrum pluriflorum
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Many Flowered Eriastrum
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Eriastrum pluriflorum

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About Many Flowered Eriastrum (Eriastrum pluriflorum) Eriastrum pluriflorum is a species of flowering plant in the phlox family known by the common names Tehachapi woollystar and many-flowered eriastrum. This wildflower is endemic to California where it is an uncommon resident of varied chaparral and woodland habitats in the central part of the state from the San Francisco Bay Area to the Mojave Desert. This is a small annual plant which may be anywhere from 2 to 25 centimeters in height, forming an erect bunch or a small patch on the ground. Its stem has the occasional narrow, thready leaf a few centimeters in length and coated in woolly hairs. The flower cluster is a mass of spindly leafs strung thickly with dense, cobwebby wool and bearing many distinctive trumpet-shaped flowers. Each flower has a very narrow throat tube one to two centimeters long ending in a flat faced corolla. The centimeter-wide corolla has five rounded to diamond-shaped lobes which are bright lavender to blue. The throat of the flower may be the same color or yellowish to reddish. The light-colored stamens protrude from the corolla.
Plant Description
Plant Type
Annual herb

Max. Height
0.07 - 1 ft (0.02 - 0.3 m)

Native Status

Natural Setting
Sun, Part Shade

Elevation ?
42' - 7055'

Annual Precip. ?
3.7" - 45.6"

Summer Precip. ?
0.13" - 2.57"

Coldest Month ?
32.7° F - 52.7° F

Hottest Month ?
57.8° F - 81.3° F

Humidity ?
0.74 vpd - 34.47 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Tehachapi Woollystar, Sherman Hoyt Woolstar, Many-flowered Eriastrum

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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