Paulownia flowers are usually set before leaf emergence so they really stand out against a neutral or evergreen background. With its rapid growth rate, the princess-tree can reach 50 feet in ...

Nature News: Squirrels aren't so bad after all Typical deciduous trees that lose their leaves every winter create a separation zone (abscission layer) between the leaf stem and the branch.

Two physicists from the Technical University of Denmark have found that leaf shape is a determining factor in the distance leaves travel as they fall from their tree. In their paper published in ...

An apple may not fall far from the tree, but for a leaf, it depends on its shape. Elm or apple leaves — oval and symmetrical, with few protruding lobes — fall quickly, making them likely to ...

We also noticed a 3-foot-tall shagbark hickory that was holding onto its leaves, which can occur in younger trees. My sister’s Japanese maple is awash with brown curly leaves, even in February.

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 ...

Why do leaves fall off trees in the autumn? 02:44 MINNEAPOLIS — The latest map shows fall colors are just starting to emerge across parts of northern and southern Minnesota. That means it's only ...