The leaf blade is the flat, expanded part of the leaf. It is where photosynthesis takes place. The leaf blade is usually green, but it can also be other colours, such as red, yellow, or purple.

Leaf margin

The leaf margin is the edge of the leaf blade. It can be smooth, serrated, or lobed.

Leaf apex

The leaf apex is the tip of the leaf blade. It can be pointed, rounded, or blunt.

Leaf base

The leaf base is the bottom of the leaf blade. It is where the leaf attaches to the stem. The leaf base can be rounded, cordate, or hastate.

Leaf petiole

The leaf petiole is the stalk that connects the leaf blade to the stem. The leaf petiole can be long or short. It can also be round or flat.

Leaf stipules

Leaf stipules are small, leaf-like structures that are located at the base of the leaf petiole. Stipules can be present or absent. They can also be free or fused to the leaf blade.

Leaf veins

Leaf veins are the channels that transport water and nutrients throughout the leaf. The leaf veins are usually visible on the underside of the leaf. They are usually green, but they can also be other colours.