Leaves are probably the most common feature used to identify trees. But in winter, when so many trees have dropped their ...

Read Dr. Don Leopold's Guide to Fall Colors in Upstate New York with color images of dozens of ... processes that take place in the tree as the seasons change from summer to winter. During the spring ...

The latest photo challenge calls for you to take and send in your best pictures of trees. Here's how to enter.

Deciduous trees are the kind that change colors and drop leaves in the fall ... which today still stands as University Hall.