Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaves are the food factories of the tree. Powered by sunlight, the ...

All trees have a leaf structure that can be classified as either ... It is always attached to a twig by its stem or the petiole. The margins, or edges, of the simple leaf can be smooth, jagged ...

Trunk A tree's trunk is made of wood and is covered in bark. The trunk of a tree is like the stem of a small plant, only a lot stronger. It too carries water around the tree. Roots The roots of a ...

A process of tree growth suiting one function produces an anatomical feature that serves an entirely different function. If not miraculous, call Bill Pramuk, Trees and People: The simple genius of ...

Developing a strong, central branch structure in a deciduous tree is critical for preventing structural failure caused by storms, wind, and ice. This 8-page publication explains the problems resulting ...