12 Facts About Coast Douglas-fir

Coast Douglas-fir is the second-tallest conifer in the world, and the third-tallest of all trees, .

Unlike the Rocky Mountain Douglas-fir, coast Douglas-fir foliage has a noticeable sweet fruity-resinous scent, particularly if crushed.

Mature or "old-growth" Coast Douglas-fir forest is the primary habitat of the red tree vole and the spotted owl .

In many areas, coast Douglas-fir needles are a staple in the spring diet of blue grouse .

Coast Douglas-fir seeds are an extremely important food for small mammals.

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Coast Douglas-fir variety is the dominant tree west of the Cascade Mountains in the Pacific Northwest, occurring in nearly all forest types, competes well on most parent materials, aspects, and slopes.

Shade-intolerance of Coast Douglas-fir plays a large role in the forest succession of lowland old growth forest communities of the Pacific Northwest.

Coast Douglas-fir is a seral species in the wet forests of western British Columbia, Washington, Oregon, and California.

Coast Douglas-fir is particularly well adapted to fires: once they reach around 100 years in age they have thick enough bark that protects the cambium layer of the tree from heat damage.

Fire is increasingly rare northward towards the central coast of British Columbia where Douglas-fir is a minor component of the forest.

On drier sites in California, where Coast Douglas-fir behaves as a climax species in the absence of fire, Coast Douglas-fir has become somewhat invasive following fire suppression practices of the twentieth and twenty-first centuries; it is becoming a dominant species in many oak woodlands, in which it was previously a minor component.

Coast Douglas-fir is one of the world's best timber producers and yields more timber than any other tree in North America.