* Stipules: These are small, leaf-like appendages that are found in pairs at the base of the petiole. They can be various shapes and sizes, and their function varies, sometimes protecting the developing bud, supporting the petiole, or even performing photosynthesis.
* Axillary Bud: This is a dormant bud located in the angle between the petiole and the stem. It's capable of developing into a new shoot, branch, or flower.
* Leaf Scar: This is a mark left on the stem after the leaf falls off. It can reveal information about the leaf's shape and the vascular bundle arrangement.
* Vascular Bundles: These are strands of vascular tissue that run through the petiole and connect the leaf to the stem. They transport water and nutrients to the leaf and carry sugars produced in the leaf back to the stem.
It's worth noting that not all plants will have all of these structures present. Some plants have no stipules, while others have modified stipules that are quite different from typical leaf-like structures.
