This Skins icon contains
sitka spruce, picea sitchensis, birch, birch tree, mountain hemlock, black hemlock, and tsuga mertensiana.
There might also be
american white birch, paper birch, paperbark birch, canoe birch, betula cordifolia, betula papyrifera, ponderosa, ponderosa pine, western yellow pine, bull pine, pinus ponderosa, and douglas fir.