It’s not easy to figure out which maples you want on your property. The good ones are the sugar maples, their leaves ablaze each fall in yellow, red and orange. The less desirable ones are the Norway ...

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 ...

The sugar maple is the official state tree of Wisconsin and in fall it's easy to see why. Its brilliant colors pop this time of year, giving us all kinds of color from yellow to red, but why does it ...

When Norway broke from Sweden in 1905, the newly independent country promised to stay neutral in all international conflicts. However, it has let loose highly successful and prolonged assaults of both ...

Maple trees are best known for their maple syrup and lovely fall foliage. But it turns out that the beauty of those leaves could be skin-deep -- and that's a good thing. Today, scientists report that ...

This undated photo shows sugar maple leaves and seeds, left, and Norway maple leaves and seeds, right, in New Paltz, N.Y. Not all kinds of maples are equally desirable, so it pays to be able to ...

The Associated Press This undated photo shows sugar maple leaves and seeds (left) and Norway maple leaves and seeds, right, in New Paltz, N.Y. Not all kinds of maples are equally desirable, so it pays ...