Norway maple

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A maple tree (Acer platanoides) native to Eurasia and naturalized in North America, having dark green leaves and widely planted as a shade tree.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a large Eurasian maple tree naturalized in North America; five-lobed leaves yellow in autumn; cultivated in many varieties