Species Profiles Quiz 8 View

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whitebark pine (Pinus albicaulis)
Family: Pinaceae

 

A table detailing the characteristics of the whitebark pine

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Form:

This is a medium sized tree reaching heights of 30 to 50 ft. and a dbh of 1 to 2 ft. It also has a tapering bole.

Needles:
 Arrangement: 5 per fascicle; clustered at end of twig

 Length: 2 – 3″ long

 Shape: stout; slightly incurved; rigid

 Other: dark green

Needles of a whitebark pine

Photo Courtesy: Susan McDougall, USDA NRCS Plants Database

Bark:

The bark is thin, smooth, and gray, nearly white, when young. When mature it becomes darker and scaly.

Cones:

The cones are ovid, serotinous, and brownish-purple in color.

Distinguishing Characteristics:

Distinguishable from limber pine by its cone. The inner lip of cone scales is purplish-brown and thick, with stout pointed umbos.

Range:

This species occurs from central Idaho to southeast Wyoming and in the Sierra Nevada mountains of California.

Silvics:

This tree occurs on dry mountain ridges.

Ecological and Cultural Importance:

This species is an important source of food for rodents, birds, and bears. It also provides cover for various species of wildlife.