Deciduous trees shed their leaves every year — bidding about 40 percent of their built-up carbon and nutrients goodbye. But it doesn’t all have to be lost.

All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness.

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 ...

What Brilliant Fall Leaf Colors Tell Us about Tree Health and Climate. A tree’s fall palette offers a glimpse at its health and the weather it has experienced in a given year.

Leaves, acorns, and other tree products that end up on your property are considered natural occurrences, and they are the responsibility of the person whose land they end up on, according to an ...