Norway Maple (Acer platanoides) vs. Sugar Maple (Acer saccharum)

These plants are often confused due to similarity in leaf shape and occurrence in the same habitat; they are easily distinguished by samaras, flowers, mature tree bark, buds, or the presence/absence of milky sap. Leaf shape can be distinguished, but is best supplemented by other cues. Although there is much overlap in habitat, Norway maple is found on a broader range of sites, including disturbed habitats, whereas sugar maple is more limited to rich, mesic sites.

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