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Chorizanthe rectispina
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Straight-awned Spineflower
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Chorizanthe rectispina

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About Straight-awned Spineflower (Chorizanthe rectispina) Chorizanthe rectispina is a species of flowering plant in the buckwheat family known by the common names prickly spineflower and straight-awned spineflower. It is endemic to California, where it is known from about twenty occurrences from Monterey to Santa Barbara Counties. It grows in dry habitat types such as chaparral and woodland in the hills of the Central Coast Ranges. It is a low, spreading plant with stems up to about 25 centimeters long, grayish to greenish in color and hairy in texture. The inflorescence is a cluster of flowers, each flower surrounded by six hairy bracts which are grayish to pink in color and tipped with awns. One bract is longer than the others and has a straight awn, and the other smaller bracts may have hooked awns. The tiny flower at the center of the bract array is a few millimeters wide and white and yellow in color.
Plant Description
Plant Type
Annual herb

Max. Height
1.2 - 4 in (3 - 10.2 cm)

Flower Color
White, Yellow

Native Status
Natural Setting
Elevation ?
233' - 3550'

Annual Precip. ?
7.5" - 26.6"

Summer Precip. ?
0.15" - 0.56"

Coldest Month ?
40.0° F - 47.9° F

Hottest Month ?
71.4° F - 78.6° F

Humidity ?
0.60 vpd - 26.23 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Prickly Spineflower

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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