IUCN threat status:

Least Concern (LC)

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Pinaceae -- Pine family

    Richard K. Hermann and Denis P. Lavender

    Douglas-fir (Pseudotsuga menziesii), also called red-fir,  Oregon-pine, Douglas-spruce, and piño Oregon (Spanish), is one of  the world's most important and valuable timber trees. It has been a major  component of the forests of western North America since the  mid-Pleistocene (30). Although the fossil record indicates that the native  range of Douglas-fir has never extended beyond western North America, the  species has been successfully introduced in the last 100 years into many  regions of the temperate forest zone (31). Two varieties of the species  are recognized: P. menziesii (Mirb.) Franco var. menziesii,  called coast Douglas-fir, and P. menziesii var. glauca (Beissn.)  Franco, called Rocky Mountain or blue Douglas-fir.

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Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

Richard K. Hermann

Source: Silvics of North America

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