This doctor who screencap contains
ponderosa, ponderosa pinus, barat pinus kuning, banteng pinus, pinus ponderosa, pinus kuning barat, sitka cemara, picea sitchensis, sitka spruce, birch amerika putih, kertas birch, paperbark birch, kano birch, betula cordifolia, betula papyrifera, and amerika putih birch.