Entry Author: Jeff Chichester
Description: The Western White Pine has a tall, slender shaft with a short-branched symmetrical crown. The trunk is usually bare of branches on its lower half.
Needles: Pale blue/green color which commonly reach up to 4 inches in length and grow in bundles of five.
Cones: Brown colored, long cylindrical cones commonly reach twelve inches.
Bark: Silver/gray color with a smooth texture when young, becoming fissured into irregular rectangular shapes as tree ages.
Branching Pattern: Horizontal pattern
Height: Pinus moticola commonly attains heights of 130 feet.
Life Span: Up to 400 years
Conditions/Habitat/Kind of Forest: Pinus monticola usually grows in dense stands and is moderately shade tolerant. It prefers cool, moist, acidic, well drained soils in mountainous areas.
Range: From south east British Columbia, Canada into western Montana, northern Idaho, and Washington in the United States. It is also found in coastal mountain ranges from south west British Columbia, Canada southward into Washington, Oregon, and central California in the U.S.
U.S.D.A. Hardiness Zone: 5
Ecological Interactions: The tree is susceptible to a fungus disease called Pine Blister Rust, which causes significant losses to young trees.
Conservation Status-US/ World Wide: This species is at low risk of becoming endangered.
Uses (Human): Western White Pine was used by Native Americans for medicinal purposes.
Benvie, S. (2000). The Encyclopedia of North American Trees. Buffalo, New York: Firefly Books Ltd.
Collingwood, G.H., Brush, W. (1964). Knowing Your Trees. Washington D.C.: American Forestry Association
I.U.C.N. Redlist of Endangered Species
This page was created by: Jeff Chichester,
Northampton Community College, and Keith Rice, Muhlenberg College.
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Last update 03/15/05