The Douglas fir is an evergreen conifer in the pine family, native to western North America, and the tallest tree in that family; it is also known as Douglas-fir, Douglas spruce, Oregon pine or Columbian pine. It comprises three varieties, the coast Douglas-fir, the Rocky Mountain Douglas-fir and the Mexican Douglas-fir, and despite its common names it is not a true fir, spruce, pine or hemlock, its genus name Pseudotsuga meaning false hemlock.
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