| A | B |
|---|
| Broadleaf | A tree with leaves that are flat or thin and generally shed annually |
| Evergreen | A tree with needles or leaves that remain alive and on the tree through the winter and onto the next growing season |
| Deciduous | A tree that sheds all leaves annually |
| Conifer | A cone-bearing tree |
| Simple Leaf | A single leaf blade with a bud at the base of the leaf stem |
| Compound Leaf | A leaf with more then one blade. All blades are attached to a single leafstem |
| Opposite | 2 or 3 leaves that are directly across from each other on the same twig |
| Alternate | Leaves that are staggered, or not placed directly across from each other on a twig |
| Margin | The edge of a leaf |
| Midrib | The primary rib of a leaf, the central vein |
| Entire | A leaf margin with smooth, untoothed edges |
| Teeth | notches on the leaf margin |
| Lobes | projections that shape a leaf |
| Palmate | blades or lobes or veins of the leaf arranged like fingers on the palm of a hand |
| Leaflets | Tiny leaf-like structures on a compound leaf |
| Petiole | The leaf stalk connecting the blade to the twig |
