The smoothness or toothiness of a leaf is determined by the shape and arrangement of the cells on the leaf's surface. Smooth leaves have cells that are arranged in a regular pattern, while toothed leaves have cells that are arranged in an irregular pattern.
The smoothness or toothiness of a leaf can also affect the plant's ability to photosynthesize. Smooth leaves are more efficient at photosynthesis than toothed leaves, because they have a larger surface area for absorbing sunlight.
Some common plants with smooth leaves include:
* Begonia
* Ficus
* Hosta
* Philodendron
* Snake plant
Some common plants with toothed leaves include:
* Maple
* Oak
* Rose
* Sunflower
* Violet