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Douglas-fir Pseudotsuga menziesii is a species of Douglas-fir Pseudotsuga native to the west of North America.
It is a medium-sized to very large evergreen coniferous tree growing to 25-100 m tall. There are two subspecies:
- Coast Douglas-fir Pseudotsuga menziesii subsp. menziesii - Coast Ranges and Sierra Nevada. Grows to 35-100 m tall.
- Rocky Mountains Douglas-fir Pseudotsuga menziesii subsp. glauca - Rocky Mountains. Grows to 25-40 m tall.
It is extensively cultivated as a timber crop, for ornamental use, and for christmas trees in the Pacific Northwest and northern Europe.