Some characteristics to distinguish between Acer platanoides and Acer saccharum

Plant part
Acer platanoides
Norway Maple
Acer saccharum
Sugar Maple
Leaf blade 5-lobed, sharp pointed 3-5-lobed, round pointed
Petiole, when removed from stem Exudes a milky sap No sap visible
Fruit (samara) Large, wide spreading, nearly horizontal Smaller, horseshoe-shaped
Bark Narrow ridges with shallow furrows Irregular, fairly wide ridges, sometimes scaly
Terminal buds Large, rounded, plump Smaller, sharp pointed


plant habit
leaves and fruit
trunk, bark
winter twigs and buds