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added by lilyZ
This National Geographic achtergrond contains amerikaanse witte berk, papier berken, paperbark berk, kano berk, betula cordifolia, papierberk, paper birch, kano birch, betula papyrifera, sitka sparren, sitkaspar, picea sitchensis, ponderosa, ponderosapijnboom, westelijke gele grenen, stier pine, pinus ponderosa, ponderosa pine, westerse yellow pine, and bull pine.
