Add Yahoo as a preferred source to see more of our stories on Google. This undated photo shows sugar maple leaves and seeds, left, and Norway maple leaves and seeds, right, in New Paltz, N.Y. Not all ...

If I asked you to stand in front of two trees and tell me which was a Norway maple and which was a sugar maple, could you do it? Linden Rayton is the Merrimack River Floodplain Education Program ...

These three maples have somewhat similar-looking leaves. On the surface, you may think this is simply an academic exercise. But if you care about invasive plants and local ecology, this distinction is ...