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, 18:51, June 7, 2011
'''Douglas fir''' is the common name for an evergreen tree common in parts of western North America, especially in [[Oregon]] and [[Washington]]. Its scientific name is ''Pseudotsuga menziesii''. The common name is from the Scottish botanist [[David Douglas]]. Douglas fir is used extensively for construction, both as structural members, and as an ornamental or finishing wood. Douglas firs are also grown as [[Christmas]] trees.