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Arctostaphylos myrtifolia
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Ione Manzanita
( Arctostaphylos myrtifolia )
Arctostaphylos myrtifolia
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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2 Nurseries Carry This Plant
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About Ione Manzanita (Arctostaphylos myrtifolia)
2 Nurseries Carry This Plant
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Arctostaphylos myrtifolia
is a species in the Ericaceae (Heath) family known by the common name Ione Manzanita. It is a rare species, endemic to the Sierra Nevada foothills of California where it grows in the chaparral and woodland on a distinctive acidic soil series in western Amador and Calaveras Counties. For this reason it is included on CNPS list 1B.2 and is listed by the federal government as Threatened. This is a red-barked, bristly shrub reaching just over a meter in maximum height. The small bright green leaves are coated in tiny hairy hairs and are shiny but rough in texture. They are less than 2 centimeters long. The flower cluster is a raceme of urn-shaped manzanita flowers on bright red branches. The fruit is a cylindrical drupe only a few millimeters long. A major threat to this rare endemic plant is a pair of fungal diseases. A branch canker caused by species of Fusicoccum, including F. aesculi, causes some mortality, and root and crown rot caused by Phytophthora cinnamomi has destroyed entire stands of the manzanita and prevented its regrowth in patches of infested soil.
Plant Description
Plant Type
Shrub
Size
2 - 4 ft tall
Dormancy
Evergreen
Flower Color
Pink, White, Red
Flowering Season
Winter, Spring
Wildlife Supported
Butterflies & moths hosted ( 36
likely
* )
SHOW ALL
*
The Brown Elfin
Callophrys augustinus
Callophrys augustinus
*
Ceanothus Silkmoth
Hyalophora euryalus
Hyalophora euryalus
*
Elegant Sheepmoth
Hemileuca eglanterina
Hemileuca eglanterina
*
Mendocino Silk Moth
Saturnia mendocino
Saturnia mendocino
*
Brown Woodling
Egira perlubens
Egira perlubens
*
Lappet Moth
Phyllodesma americana
Phyllodesma americana
*
Forest Tent Caterpillar
Malacosoma disstria
Malacosoma disstria
Landscaping Information
Sun
Full Sun, Part Shade
Moisture
Low
Nurseries
Carried by 2
Ease of Care
Moderately Easy
Soil Drainage
Fast, Medium, Slow
Soil Description
This plant requires sandy-clay soil. often underlain by hardpan
Common uses
Hummingbird Gardens, Bee Gardens
Natural Setting
Site Type
Acid sand, clay soils
Climate
Annual Precipitation: 16.9" - 53.7", Summer Precipitation: 0.26" - 2.21", Coldest Month: 32.4" - 49.4", Hottest Month: 57.5" - 75.0", Humidity: 0.70" - 22.85", Elevation: 76" - 6884"
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Ione Manzanita
Arctostaphylos myrtifolia
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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