Alpine fir

a fir, Abies lasiocarpa, of the Rocky Mountains, yielding a soft, brittle wood used for making boxes, crates, etc.
Historical Examples

The principal trees of the meadow area are the alpine fir, the alpine hemlock, and the Alaska cedar.
The Mountain that was ‘God’ John H. Williams

Arizona Cork Fir (Abies arizonica) very closely resembles forms of the alpine fir, and may not be a separate species.
American Forest Trees Henry H. Gibson

alpine fir (Abies lasiocarpa) is so called because it thrives on high mountains and in the far North.
American Forest Trees Henry H. Gibson

Sudworth was unable to distinguish its foliage and cones from those of alpine fir, but the bark is softer.
American Forest Trees Henry H. Gibson

Mountain hemlock and alpine fir succeed the trees of the lower slope.
The Forests of Mount Rainier National Park Grenville F. Allen

Other species are the alpine fir, Douglas spruce, limber pine, and Western yellow pine.
Your National Parks Enos A. Mills

The alpine fir occurs in unmixed stands, but is often associated with the mountain hemlock.
The Forests of Mount Rainier National Park Grenville F. Allen

The forest was made up almost entirely of Engelmann and Douglas spruces, alpine fir, and flexilis pine.
The Spell of the Rockies Enos A. Mills

The trees are mountain hemlock, alpine fir, Engelmann spruce, and white-bark pine.
Your National Parks Enos A. Mills

alpine fir grows from the base of the mountains to timber line; at high altitudes it is dwarfed and sprawling.
Grand Teton [Wyoming] National Park United States Dept. of the Interior