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MOUNT RAINIER NATIONAL PARK NATURE NOTES
Vol. XVI September - December - 1938 Nos. 3 & 4


WESTERN RED CEDAR.
(Thuja plicata)

This tree, in spite of its common name, is not a cedar in the correct sense, for no true cedars (genus Cedrus) are native to the United States. One will find true cedars, such as Cedrus deodara, used in landscape plantings in many parts of the country but these are introduced and do not naturally occur here. However, no apology needs to be made for the western red cedar. It is a common, very beautiful and distinctive tree in the forests of the park up to about 4000 feet.

It grows to a large size. Mature specimens are from 150-200 feet tall and from 3-8 feet in diameter while larger individuals may occasionally be found. The trunks are conical, being conspicuously buttressed (swelled) and fluted at the base. In the deep forests the trunks are free of limbs for a considerable portion of their length and one may readily observe the character of the bark which is thin, shreddy and fibrous, and reddish to cinnamon brown in color. The foliage is dark green, soft to the touch and scale-like which gives a lacy, "fern-like" appearance to the gracefully drooping branches. The cones, which are borne in abundance, are oblong in outline, from 1/2-3/4 of an inch in length with the scales joined at the base. They mature in the late summer and remain upon the branches, after opening and shedding the seeds, until the following year. The wood of this tree is very durable, straight grained, has a characteristic pleasant "cedar" odor and varies from yellow to brown in color. The tree attains a considerable age here and the larger specimens are undoubtedly from 600 to 800 y ears old.

The western red cedar was of considerable importance to the Indians of the northwestern coast. From the huge trunks they fashioned large dugout canoes. Lodges were built of cedar slabs split from large logs and, as the inner bark is strong and tough, it was used in the manufacture of mats, baskets and similar articles. The early white settlers in this region quickly became aware of the admirable qualities of the wood of this tree. Many pioneer cabins were made of split cedar timbers and roofed with cedar shakes. The wood was also widely used for flooring, and rustic but serviceable furniture could be readily made from it without benefit of specialized woodworking tools. Even today it is one of our most important commercial forest trees.

This interesting tree may be found along the Pacific Coast in southeastern Alaska, British Columbia, Washington, Oregon and northern California, while inland it occurs in eastern British Columbia and Washington, northern Idaho, and western Montana.

-oOo-

sketch of Western Red and Alaska Cedars
WESTERN RED CEDAR (Thuja plicata). A-Twig, illustrating character of the cones and foliage. Note oblong outline of the cones and scale-like appearances of the foliage. (x1). B-Enlarged sketch of mature, open cone (x4).
ALASKA CEDAR (Chamaecyparis nootkatensis). C-Twig, illustrating character of cones and foliage. D-Enlarged sketch of mature, open cone (x4).

-oOo-

Descriptions continued...

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http://www.nps.gov/mora/notes/vol16-3-4d13.htm
17-Jun-2002