This Sam Sparro fan art contains
beech, beech tree, pondweed, american white birch, paper birch, paperbark birch, canoe birch, betula cordifolia, and betula papyrifera.
There might also be
oregon maple, big leaf maple, acer macrophyllum, california white oak, valley oak, valley white oak, roble, quercus lobata, and red oak.