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Knobcone Pine
Pinus attenuata
  
About Knobcone Pine (Pinus attenuata) 4 Nurseries Carry This Plant The Knobcone Pine (Pinus attenuata) is a tree that grows in mild climates on poor soils. It ranges from the mountains of southern Oregon to Baja California with the greatest concentration in northern California and the Oregon-California border. This pine reaches heights of 8-24 m; however, it can be a shrub on especially poor sites. It prefers dry rocky mountain soils. The crown is usually conical with a straight trunk. The bark is smooth, flaky and gray-brown when young, becoming dark gray-red-brown and shallowly furrowed into flat scaly ridges. The twigs are red-brown and often resinous.
Plant Description
Plant Type
Plant Type
Tree

Size
Size
26.3 - 118 ft tall

Wildlife Supported
 


Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Extremely Low, Very Low

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Soil Drainage
Soil Drainage
Fast

Common uses
Common uses
Bank Stabilization, Deer Resistant, Bird Gardens

Propagation
Propagation?
For propagating by seed: 2 mos. stratification (USDA Forest Service 1974).

Sunset Zones
Sunset Zones?
3, 4*, 5*, 6*, 7*, 10, 14*, 15*, 16*, 17*, 18, 19, 20, 21, 22, 23, 24*

Natural Setting
Site Type
Site Type
Dry rocky mountain soils

Climate
Climate
Annual Precipitation: 14.6" - 158.0", Summer Precipitation: 0.19" - 5.78", Coldest Month: 11.6" - 54.4", Hottest Month: 34.8" - 77.6", Humidity: 0.28" - 26.69", Elevation: 17" - 13935"


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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