Douglas-fir trees are a well known fixture in the Pacific Northwest; their common name honors Scottish botanist David Douglas who collected seeds in Oregon in the early 19th century. But, an inland variety also grows here in the Southwest.
They grow mostly – but not exclusively – at higher elevations on cool, moist north-facing slopes. The Douglas-fir is a conifer, but is neither a pine, a spruce, nor a true fir. It’s in a genus all its own.