At higher elevations, groups of mountain hemlock and lupines prevail. The dominant trees are limited to Sitka spruce, western hemlock and mountain hemlock. These include western hemlock, western redcedar, grand fir, mountain hemlock, and larches. Trees in this community include Whitebark Pine and Mountain Hemlock. A forest of mountain hemlock and fir grows up to the timberline at about . Tree species include western red cedar, yellow cedar, mountain hemlock and fir. Sitka spruce, western hemlock, silver fir, mountain hemlock, and subalpine parkland. In the west, the subalpine zone is dominated by mountain hemlock. This forest has Engelmann spruce, mountain hemlock, and subalpine fir. Elk prefer more humid areas, the Sitka spruce, wet western hemlock, and mountain hemlock zones. In the alpine level, Alaskan yellow cedar, subalpine fir, and mountain hemlock grow. Mountain hemlock is tolerant of shade and other forms of competition. Mountain hemlock is adapted to sites with long-lasting snowpacks. The forest islands typically consist of mountain hemlock, subalpine fir, and Alaska cedar. "Windward moist maritime" (MHmm1) is dominated by mountain hemlock and Pacific silver fir.