 Other common canopy associates include white ash ("Fraxinus americana"), red maple ("Acer rubrum"), and northern red oak ("Quercus rubra"), which becomes less and less common northwards, dropping out almost entirely by mid-Vermont, New Hampshire, and inland Maine.White oak ("Quercus alba") is also an important canopy species in southern New England's seaboard lowlands.White pine ("Pinus strobus") and red pine ("Pinus resinosa"), are also an important part of this mixed forest.