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Holly-leaved Ceanothus
( Ceanothus purpureus )
Ceanothus purpureus
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Holly-leaved Ceanothus (Ceanothus purpureus)
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Ceanothus purpureus
, with the common name Hollyleaf ceanothus, is a species of shrub in the buckthorn family Rhamnaceae. It is endemic to northern California, where it is known only from the Inner North Coast Ranges north of the Bay Area, mainly in Sonoma and Napa Counties. The largest remaining population of this shrub occurs on Mt. George near Napa, where it is protected in a botanical preserve. The
Ceanothus purpureus
plant grows in woodland and chaparral habitat. It is spreading or erect in form, approaching 2 meters in maximum height. The woody parts are gray to reddish brown in color. The evergreen leaves are oppositely arranged and up to about 2. 5 centimeters long. They are round to oval, wavy, and edged with spiny teeth, resembling the leaf of holly. The inflorescence is a small cluster of blue or purple flowers. The fruit is a horned capsule about half a centimeter long.
Plant Description
Plant Type
Shrub
Size
6.6 ft tall
Dormancy
Evergreen
Flower Color
Blue, Purple
Flowering Season
Winter, Spring
Wildlife Supported
Butterflies & moths hosted ( 57
likely
* )
SHOW ALL
*
Gray Hairstreak
Strymon melinus
Strymon melinus
*
Pale Tiger Swallowtail
Papilio eurymedon
Papilio eurymedon
*
Lorquin's Admiral
Limenitis lorquini
Limenitis lorquini
*
California Tortoiseshell
Nymphalis californica
Nymphalis californica
*
The Brown Elfin
Callophrys augustinus
Callophrys augustinus
*
Pacuvius Duskywing
Erynnis pacuvius
Erynnis pacuvius
*
Hedgerow Hairstreak
Satyrium saepium
Satyrium saepium
Landscaping Information
Sun
Full Sun, Part Shade
Common uses
Bank Stabilization, Deer Resistant, Bird Gardens, Butterfly Gardens, Bee Gardens
Natural Setting
Climate
Annual Precipitation: 23.0" - 77.0", Summer Precipitation: 0.26" - 0.83", Coldest Month: 44.6" - 49.8", Hottest Month: 60.9" - 74.6", Humidity: 0.01" - 21.35", Elevation: 46" - 2188"
Alternative Names
Common Names
: Hollyleaf Ceanothus
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Holly-leaved Ceanothus
Ceanothus purpureus
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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