This National Geographic kertas dinding contains
sitka merapikan, sitchensis picea, sitka spruce, picea sitchensis, and terowong kereta api.
There might also be
beech, pokok beech, pokok bic, american birch putih, birch kertas, paperbark birch, kanu birch, betula cordifolia, betula papyrifera, birch putih amerika, birch kanu, douglas fir, and douglas firaun.