This Merlin di BBC seni peminat contains
sitka merapikan, sitchensis picea, sitka spruce, picea sitchensis, douglas fir, douglas firaun, american birch putih, birch kertas, paperbark birch, kanu birch, betula cordifolia, betula papyrifera, birch putih amerika, and birch kanu.
There might also be
ponderosa, pain ponderosa, pain kuning barat, lembu pain, ponderosa pinus, ponderosa pine, barat kuning pine, jantan pine, pinus ponderosa, gunung hemlock, hemlock hitam, mertensiana tsuga, gunung hemlock hemlock, hitam, tsuga mertensiana, birch, pokok birch, and kayu birch pokok.