Add Yahoo as a preferred source to see more of our stories on Google. For broad-leaved trees like the holm oak, which grows in Mediterranean climates with dry summers and rainy winters, this seasonal ...

In this edition of ID That Tree, Purdue Extension forester Lenny Farlee goes over leaf characteristics to look for when attempting to identify broadleaved deciduous trees in Indiana. He shares the ...

A study found that redwood trees have two different leaves that serve different functions. The peripheral leaf, left, focuses on photosynthesis while the axial leaf is devoted to absorbing water.

If you notice a substance that looks like ash or soot on your trees, it's likely not the result of a fire. Instead, you're ...

Above: This photo tells an entire story. Taken at Roan Mountain State Park in Tennessee in January, it shows most of the deciduous trees are bare. However, you can easily see the light tan colors of ...

Climate warming is linked to a widening interval between leaf unfolding and flowering in European trees, with implications for tree fitness and the wider environment, according to new research. An ...

While out for a walk this weekend, some leaves were really in my face, which got me thinking about why. This is a very leafy time of year, with lots of leaves underfoot, so many that walking in the ...

Have you ever noticed that when you cut down a tree — or a tree dies suddenly — the dead leaves stay on the tree for a long time? The leaves go from green to brown, but stay on the dead tree branches.

Pennsylvania naturalists are keeping an eye on a disease that has been killing beech trees in the eastern U.S. for more than a decade, but has begun spreading more rapidly in the past three years.