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Shreve Oak
Quercus parvula var. shrevei
  
About Shreve Oak (Quercus parvula var. shrevei) 2 Nurseries Carry This Plant Quercus parvula var. shrevei, or Shreve Oak, is an evergreen red oak found in the California Coast Ranges from Santa Barbara County north to Mendocino County. It was taxonomically combined with Quercus wislizeni until resurrected as a separate species by Kevin Nixon in 1980. Recent work suggests Q. parvula var. parvula to be Q. parvula var. shrevei x Q. wislizeni.

It generally occurs in foothills where it is common in the low elevations. It is a large shrub or tree growing to 22 meters (73 feet) tall, although it seldom exceeds 10 meters (33 feet). The dark-green leaves -appearing grayish from a distance. Leaves are usually small, 2-5 cm (0. 8-2. 0 inches) long, thick, and often spiny-toothed at higher elevations. All California red oaks show evidence of introgression and/or hybridization with one another.
Plant Description
Plant Type
Plant Type
Tree

Size
Size
56 - 72.2 ft tall

Dormancy
Dormancy
Evergreen

Flower Color
Flower Color
Cream, Green

Flowering Season
Flowering Season
Spring

Wildlife Supported
 
Many insects are attracted to Oaks generally, including the following butterflies which use Oaks as host plant: California Sister, Propertius Duskywing, Mournful Duskywing, Golden Hairstreak, and Gold-Hunter's Hairstreak.

Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Low

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Common uses
Common uses
Bank Stabilization, Bird Gardens, Butterfly Gardens

Sunset Zones
Sunset Zones?
5, 7, 8, 9*, 14*, 15*, 16*, 17*, 18, 19*, 20*, 21*, 22*, 23*, 24*

Natural Setting
Site Type
Site Type
Slopes

Climate
Climate
Annual Precipitation: 11.6" - 81.4", Summer Precipitation: 0.16" - 1.35", Coldest Month: 40.7" - 53.0", Hottest Month: 57.1" - 77.4", Humidity: 0.46" - 26.64", Elevation: -104" - 4957"

Alternative Names
Common Names: Shreve's Oak


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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