This doctor who screencap contains
sitka cemara, picea sitchensis, sitka spruce, birch amerika putih, kertas birch, paperbark birch, kano birch, betula cordifolia, betula papyrifera, amerika putih birch, birch, and pohon birch.
There might also be
douglas cemara, douglas fir, ponderosa, ponderosa pinus, barat pinus kuning, banteng pinus, pinus ponderosa, pinus kuning barat, poplar, and pohon poplar.