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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.
Cedar hemlock douglas-fir forest is a vegetation association in California, United States. This is one of the Kuchler system forest types used to classify California plant communities. [1] As the name implies, dominant tree types are Incense cedar, Western Hemlock and Douglas fir. The forest type is classified FRES20 in the Kuchler system. [2]
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.
By far the best-known is the very widespread and abundant North American species Pseudotsuga menziesii, a taxonomically complex species [14] divided into two major varieties (treated as distinct species or subspecies by some botanists): coast Douglas-fir or "green Douglas-fir", on the Pacific coast; and Rocky Mountain Douglas-fir or "interior ...
The major tree species here are Douglas fir, western red cedar, Sitka spruce, and western hemlock. Beyond the northern end of Vancouver Island, is the "perhumid rain forest zone". Douglas fir wanes as a dominant species, and the forest is primarily made up of western red cedar, Sitka spruce, and western hemlock.
Douglas-fir (Pseudotsuga menziesii) Coast Douglas-fir (Pseudotsuga menziesii var. menziesii) Rocky Mountain Douglas-fir (Pseudotsuga menziesii var. glauca) European yew (Taxus baccata) Fir (Abies) Balsam fir (Abies balsamea) Silver fir (Abies alba) Noble fir (Abies procera) Pacific silver fir (Abies amabilis) Hemlock (Tsuga) Eastern hemlock ...
The Olympic rainforest of Washington supports dense stands of western hemlock, western red cedar, Sitka spruce, and Pacific silver and grand firs. Douglas fir is concentrated in Washington and Oregon. Alaska's predominate species is the western hemlock and Sitka spruce.
On steep, well drained slopes, canyon live oak is the dominant species, with coast Douglas-fir in a minor role. On serpentine soils, mixed evergreen forests are made up of: moister areas. Lawson's cypress (also known as Port Orford cedar, Chamaecyparis lawsoniana) and; Western white pine (Pinus monticola) drier areas. Incense cedar (Calocedrus ...
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