| A | B |
|---|
| petiole | the leaf stalk- supports the leaf blade |
| blade | the larger, usually broad, flat part of a leaf |
| midrib | the largest vein in the center of the leaf |
| veins | tiny tubes that from patterns in the leaf blade |
| margin | the outer edge of the leaf blade |
| apex | the tip of the leaf |
| base | the part of the blade that is attached to the petiole |
| epidermis | the outermost cellular layer of a leaf |
| axillary bud | a future leaf located at the base of the leaf |
| entire | a leaf margin that is smooth, with no teeth or notches |
| leaf venation | the pattern made by teh veins in a leaf |
| parallel | venation pattern found in monocots |
| pinnate | the venation pattern then the midrib has smaller veins branching from it |
| palmate | a venation pattern that has three or more major veins extending from the base of the leaf blade |
| simple leaf | a leaf that consists of a single leaf blade and a petiole |
| compound leaf | a leaf that is made of several leaflets, arising from the same petiole |
| opposite | a leaf arrangement where leaves are directly opposite from each other on the stem |
| alternate | a leaf arrangement where leaves are alternated or staggered along the stems |
| whorled | a leaf arrangement where three or more leaves arise from the same point on the stem |
| tendril | a modified leaf that is used to climb |
