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Sonoma Ceanothus
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Ceanothus sonomensis
  

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About Sonoma Ceanothus (Ceanothus sonomensis) Ceanothus sonomensis, with the common name Sonoma ceanothus, is a rare species of shrub in the buckthorn family Rhamnaceae. It is endemic to northern California. Ceanothus sonomensis is known only from the Hood Mountain Range. Most of its 10 or so occurrences are located in Sonoma County, and one remains in Napa County. Ceanothus sonomensis is a member of the chaparral plant community in the California montane chaparral and woodlands sub-ecoregion.
Plant Description
Plant Type
Shrub

Flower Color
Lavender, Blue

Native Status
Natural Setting
Elevation ?
234' - 2534'

Annual Precip. ?
33.9" - 47.3"

Summer Precip. ?
0.35" - 0.54"

Coldest Month ?
45.6° F - 48.6° F

Hottest Month ?
67.7° F - 74.0° F

Humidity ?
0.95 vpd - 21.16 vpd

Landscaping Information
Common uses
Bank Stabilization, Butterfly Gardens, Bee Gardens

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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