WSU Clark County Extension
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Southwestern White Pine

Scientific name: Pinus strobiformis
Taxonomy
Family:Pinaceae
Type:Coniferous trees
Native:NO
Plant Requirements
Zone:3 to 7
Sun:Full sun
Plant Characteristics
Height:60 ft
Width:35 ft
Additional Characteristics
Trees


Fruit

Leaves


Bark
Wildlife value

Poisonous
Description Southwestern White Pine is native to Arizona, New Mexico, Texas, and into Mexico. In the U.S. it will grow as far north at New York. Also known as Mexican White Pine.

  Morphology:
This is a large forest conifer that can grow to 60’ in height and 35’ in width at maturity. It bears needles in bundles of 5, similar to Limber Pine. However the needles are longer (2.5” to 3.5” in length) and are heavier. They have a silvery-blue coloration. This tree looks like a Limber Pine (Pinus flexilis). The cones of Southwestern White Pine are generally larger than those of Limber Pine (6-10 inches versus 3-6 inches). The needles of Southwestern White Pine are bright green, as opposed to the darker green of Limber Pine.

  Adaptation:
Widely adapted to most soils and sites. It can be sheared to a Christmas tree shape if so desired.

  Pests:
None reported.
For assistance, contact Dr. Charles Brun (brunc@wsu.edu), (360) 397-6060 5701
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