Douglas fir trees are a native North American evergreen conifer, there are various species in the west, including Coastal or Rocky Mountain (Interior). They have small pine cones, which are produced in the spring. They are green at first and mature to brown. The seeds are a food source to small mammals such as mice, shrews, and chipmunks. The needles are a food source for Blue Grouse. Porcupines will eat the inner bark of young trees. This tree is named after David Douglas, a Scottish botanist who was the first to record this tree. This tree and others were found in the Kachina Peaks Wilderness in northern Arizona.