The Norway maple leaf, Starr and others pointed out, has five main lobes and the tips are stringy while Canada’s sugar maple leaf has just three lobes and the tips are not stringy. Norway’s ...
Norway maple ... the petiole (leaf stem) as it contains a milky substance. For more information visit Woody Invasives of the Great Lakes (WIGL) Collaborative and Midwest Invasive Species Information ...
Bowhall': Grows in all 50 states, somewhat pyramidal shape, very similar to Norway maple, red to orange to yellow leaf display. 'Autumn Blaze': Plant zones 4-8, hybrid of silver maple and red maple.