A large section of the range is covered by the Siuslaw National Forest. Most of the range is forested and mainly within the western hemlock vegetation zone with the overstory of the forest dominated by red alder, western hemlock, western cedar, bigleaf maple, and Douglas-fir trees. In these forested sections, trees include Sitka spruce, western redcedar, Douglas-fir, and western hemlock. The understory of the forest areas contain vine maple, Oregon grape, salmonberry, huckleberry, and sword fern to name a few. Other plants that grow in the region are Pacific madrone, salmonberry, Pacific silver fir, bracken fern, manzanita, thimble-berry, Pacific dogwood, bitter cherry, snowberry, some rose species, and cascara. Additionally, various grass, sedge, and moss species are some of the other plant life growing in the mountain range.