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Bunchberry
( Cornus canadensis )
Cornus canadensis
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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2 Nurseries Carry This Plant
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About Bunchberry (Cornus canadensis)
2 Nurseries Carry This Plant
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Cornus canadensis
(Canadian Dwarf Cornel, Canadian Bunchberry, Crackerberry) is a herbaceous member of the Cornaceae (Dogwood) family. It is widespread outside of California, but within the state it is a rare species occurring only near the coast in Mendocino County. For this reason it is included on CNPS list 2B.2. It grows about 20-30 centimeters tall and bears tiny flowers a few millimeters across that form a cluster at the center of four white, petal-like leaves 3-4 centimeter diameter. Each flower has highly elastic petals that flip backward, releasing springy filaments that are cocked underneath the petals. The filaments snap upward flinging pollen out of containers hinged to the filaments. This motion takes place in less than half a millisecond and the pollen experiences 800 times the force that the space shuttle does during liftoff. The Bunchberry has one of the fastest plant actions found so far requiring a camera capable of shooting 10,000 frames per second to catch the action (Edwards et al. 2005).
Plant Description
Plant Type
Perennial herb
Size
7.9 - 11.8 in tall
Growth Rate
Slow
Dormancy
Evergreen
Flower Color
White
Flowering Season
Spring, Summer
Wildlife Supported
Members of the genus Cornus are host plant to the Spring Azure butterfly
Butterflies & moths hosted ( 1
confirmed
, 7
likely
* )
SHOW ALL
White Triangle Tortrix
Clepsis persicana
Clepsis persicana
*
Polyphemus moth
Antheraea polyphemus
Antheraea polyphemus
*
Red-Humped Caterpillar
Schizura concinna
Schizura concinna
*
Forest Tent Caterpillar
Malacosoma disstria
Malacosoma disstria
*
Sulphur Moth
Hesperumia sulphuraria
Hesperumia sulphuraria
*
Great Ash Sphinx
Sphinx chersis
Sphinx chersis
*
Johnson's Euchlaena
Euchlaena johnsonaria
Euchlaena johnsonaria
Landscaping Information
Sun
Part Shade
Moisture
Moderate - High
Nurseries
Carried by 2
Soil Drainage
Medium, Standing
Soil Description
Prefers rocky acidic soil
Common uses
Groundcovers, Bird Gardens
Companion Plants
Use with other species of the northern coastal forests and woodlands
Propagation
?
For propagating by seed: 1-2 mos. warm and 4-5 mos. cold stratification (USDA Forest Service 1974).
Sunset Zones
?
1, 2, 3, 4*, 5*, 6*, 14, 15, 16, 17
Natural Setting
Site Type
Bogs and moist open places
Climate
Annual Precipitation: 44.2" - 50.1", Summer Precipitation: 0.73" - 0.84", Coldest Month: 44.3" - 45.2", Hottest Month: 60.8" - 67.8", Humidity: 0.04" - 13.96", Elevation: 205" - 409"
Alternative Names
Common Names
: Bunchberry Dogwood
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Bunchberry
Cornus canadensis
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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