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Douglas-fir is one of the world's best timber-producing species and yields more timber than any other species in North America, making the forestlands of western Oregon, Washington, and British Columbia the most productive on the continent. In 2011, Douglas-fir represented 34.2% of US lumber exports, to a total of 1.053 billion board-feet.
Southern Yellow Pine (Loblolly and Shortleaf) 690 lbf (3,100 N) Douglas Fir: 660 lbf (2,900 N) Western Juniper ...
A list of tree species, grouped generally by biogeographic realm and specifically by bioregions, and shade tolerance. Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants.
Pseudotsuga / ˌ sj uː d oʊ ˈ t s uː ɡ ə / [1] is a genus of evergreen coniferous trees in the family Pinaceae (subfamily Laricoideae).Common names for species in the genus include Douglas fir, Douglas-fir, Douglas tree, Oregon pine and Bigcone spruce.
Coast Douglas-fir (Pseudotsuga menziesii var. menziesii) Rocky Mountain Douglas-fir ... Southern yellow pine. Loblolly pine (Pinus taeda) Longleaf pine (Pinus palustris)
Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
For example, balsa wood, which is a hardwood, is softer than most softwoods, whereas the longleaf pine, Douglas fir, and yew softwoods are much harder than several hardwoods. [citation needed] Several specific natural, macroscopic and microscopic features of wood are used in the identification process of a softwood species. [5]
Coast Douglas-fir (Pseudotsuga menziesii ssp. menziesii) is the predominant tree, occupying up to 70% of the forest cover. Broadleaf evergreen trees are relatively few. Tree species of secondary importance are: Sugar pine (Pinus lambertiana), Ponderosa pine (Pinus ponderosa), White fir (Abies concolor).
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