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Arctostaphylos imbricata
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San Bruno Mountain Manzanita
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Arctostaphylos imbricata
  

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About San Bruno Mountain Manzanita (Arctostaphylos imbricata) Arctostaphylos imbricata is a species of manzanita known by the common name San Bruno Mountain manzanita. It is endemic to San Mateo County, California, where it is known only from six populations on San Bruno Mountain. Despite its rarity, this manzanita is not a federally listed endangered species because five of its six remaining populations are protected by the San Bruno Mountain Habitat Conservation Plan. Arctostaphylos imbricata is a small, spreading, matlike shrub forming flat tangles or mounds less than a meter in height. The branches are coated in long bristles tipped in resin glands. The light green, glandular leaves are round to oval with rough, bristly, dull surfaces and smooth or toothed edges. They are up to 4 centimeters long and 3 wide. The dense inflorescence is crowded with rounded, urn-shaped white flowers, each only 3 to 5 millimeters long. The fruit is a hairy, glandular drupe about 7 millimeters wide.
Plant Description
Plant Type
Shrub

Max. Height
0.33 - 3.3 ft (0.1 - 1 m)

Dormancy
Evergreen

Flower Color
Pink, White

Native Status
Natural Setting
Elevation ?
327' - 1826'

Annual Precip. ?
23.6" - 59.0"

Summer Precip. ?
0.31" - 0.61"

Coldest Month ?
47.9° F - 50.4° F

Hottest Month ?
64.7° F - 68.5° F

Humidity ?
1.13 vpd - 15.31 vpd

Landscaping Information
Common uses
Deer Resistant, Hummingbird 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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