Mountain White Pine
The Pinus Monticola
is commonly known as Idaho White Pine
, Mountain White Pine
, Silver Pine
, as well as Western White Pine< Go Back
Western white pine occurs in the Pacific Northwest. The northern
boundary of its range is at Quesnel Lake, British Columbia, latitude 52
deg. 30 min. N., and the southern boundary is at Tulare County,
California, latitude 35 deg. 51 min. N. The western boundary is marked
by the Pacific Coast, and the eastern boundary is at Glacier National
Park, Montana. Western white pine reaches its greatest size and best
stand and commercial development in northern Idaho and adjacent parts of
Montana, Washington, and British Columbia [11
The currently accepted scientific name of western white pine is Pinus
monticola Dougl. ex D. Don (Pinaceae) [11
]. There are two recognized
varieties: P. m. var. minima Lemmon and P. m. var monticola [38
There are no subspecies or forms.
Western white pine hybridizes with Balkan pine (P. peuce), blue pine (P.
griffithii), eastern white pine (P. strobus), southwestern white pine
(P. strobiformis), and limber pine (P. flexilis) [11
Western white pine is a seral species that is present in a number of
habitat types, associations, and communities throughout its range. In
northern Idaho and eastern Washington, it may dominate early
successional stages of the western hemlock (Tsuga heterophylla)/queencup
beadlily (Clintonia uniflora) and western redcedar (Thuga
plicata)/queencup beadlily habitat types . It is also a major seral
species in the western hemlock/queencup beadlily habitat type in western
Monatana and is a major constituent of the western hemlock zone in the
Puget Sound area of Washington . A western white pine riparian
dominance type has been described for northwestern Montana .
Associated species are those associated with the Aralia phase of the
subalpine fir (Abies lasiocarpa)/queencup beadlily habitat type .
Western white pine is moderately abundant, usually growing in small
groups and often interspersed with other species, in the subalpine
forest zone on the west slope of the Sierra Nevada .
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Much of the information presented here is attributed to:
Griffith, Randy Scott. 1992. Pinus monticola. In: Fire Effects Information System, [Online].
U.S. Department of Agriculture, Forest Service,
Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available at USDA Forest Service.