Black spruce trees in Superior National Forest, Minnesota

© Jim Brandenburg/Minden Pictures - 2015-07-05

tree forest tropical and subtropical coniferous forests natural environment northern hardwood forest spruce-fir forest biome plant woody plant temperate broadleaf and mixed forest birch red pine old-growth forest woodland temperate coniferous forest grove american aspen american larch canoe birch valdivian temperate rain forest birch family lodgepole pine trunk georgia pine pine family