He testified to successfully ban mutagenic herbicides in Douglas fir reforestation, and led and won a battle to exclude secret war department research from the University of Oregon campus.
Their diet seems to have consisted of both grasses and browsing of conifers such as spruce, Douglas fir, limber pine, and water birch.
Construction on this bridge was underway by March 1936; it was rapidly assembled using Douglas fir from British Columbia as the main structural members.
Construction on this bridge was underway by March 1936; it was rapidly assembled using old-growth Douglas fir from British Columbia (BC) as the main structural members.
The framework tower, a glued girder binder construction made from European Douglas fir timber, is 60 meters high.
Much of the woodland is mixed, but there are also significant stands of pine, Douglas fir and larch.
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Common vegetation in Boulder River Wilderness includes old-growth Douglas fir, true fir, western hemlock, and western red cedar, as well as bigleaf maple, alder, willow, and devil's club.
The Company also specializes in products manufactured from Douglas Fir and Hemlock used for millwork, doors, windows, treated products, Japanese house components and bridge timbers.
Tête Jaune Cache is an ecologically rich forest habitat for trees including Lodgepole pine, Trembling Aspen, Western red cedar, Paper birch and Douglas fir; wildlife such as Moose, Cougar, Wolverine, Black bears, Grizzly bears, Lynx, Beaver, and Marten.
Old-growth forests of Douglas-fir, Western Hemlock and Western Red Cedar, reachable by hiking trails, are nourished by many streams and eight small lakes, including Summit Lake.
The school is named after 19th-century Scottish botanist David Douglas, namesake of such Pacific Northwest species as the Douglas-fir.
Softwood - wood from a gymnosperm tree, i.e. trees in the divisions Pinophyta and Ginkgophyta Despite the name, not necessarily very soft or light wood (e.g. douglas-fir is a softwood).
At present Juken Nissho controls around 550 km² of Pinus radiata, Douglas-fir and Corsican pine.
Wild Agarikon is only found in old-growth forests, and grows on conifers, particularly Douglas-fir (Pseudotsuga) and larch (Larix).
Here, the river trail descends 300 feet in half a mile passing though temperate rain forest with moss covered Bigleaf Maple, Douglas-fir, Sword Fern and Salal and places to step off the trail and rest or enjoy the scenery.
She is built of several types of woods traditionally used in shipbuilding, including: Live Oak, Angelique, Longleaf Pine, Sapele, Purpleheart, and Douglas Fir.
Rhizopogon vinicolor is one such which is associated with the Douglas-fir (Pseudotsuga spp.).
The forests in the watershed include a wide variety of vegetation, including Douglas-fir, bigleaf maple, madrone, typical of the Southern Oregon Coast Range, coastal Siskiyou Mountains, and the Redwoods Zone.