Nature Notes

Vol. VI July 29th, 1928 Summer Season No. 3

The Douglas Fir----Pseudotsuga taxifolia

If one were asked to name the most outstanding tree in the forests of Mount Rainier National Park there could be but one answer--the Douglas Fir. Nor is its fame limited to the 360 miles that are included within the park boundaries. It is the most important and most magnificient tree of the Pacific Northwest and commercially the most important conifer, or "softwood", in the world.

The Douglas Fir is found growing in many sections of the west as far east as central Nebraska but nowhere in this wide range does it attain the huge proportions that are customary in the Pacific Northwest. It is often eight, ten or even twelve feet in diameter, rearing its huge boll 250 feet above the forest floor. In the dense timbers its trunk is usually free from limbs throughout two thirds of its great height and encased in an armour of extremely thick bark which serves to protect it from the ravages of forest fires.

This tree has been known by a number of common names, due chiefly to the confusion on the part of the early settlers regarding its identification. It has been known as Oregon Pine, Red Fir, Douglas Spruce as well as Douglas Fir and the scientific name means "false hemlock with foliage like a yew". Its correct common name is Douglas Fir, however, it is not a true fir; with one other relative being a separate tree group. One may recognize it by the thick, deeply furrowed bark but the outstanding feature is the cone. This is about 2-1/2 to 3 inches long, hangs down from the branches and between the cone scales protrude long three pointed bracts that give the cone a decided "feathered" appearance. Its foliage is, like many of the cone bearing trees, needle-like in character, flat and soft to the touch. We find it most abundant where there is an abundance of sunlight for it does not thrive in the shade. In the dense woods it is always the dominant tree where it contains the much needed sunlight by overtopping its association. From the standpoint of reforestation it is the utmost importance for in addition to being a valuable timber tree it bears an abundance of seed and with a little help from man will quickly reseed cut over or burned over areas. The Douglas Fir is KING of the forest!

By C.F. Brockman, Information Ranger.

sketch of Douglas Fir cones

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