IT is called a petole.
It's called the "Shade Leaf"
The bottom of a leaf is called the abaxial surface. It is typically lighter in color than the top of the leaf and may have different characteristics, such as more stomata for gas exchange.
The answer is no, because, on the top of a leaf there is the, cuticle, then the upper epidermis cells underneath, which you can see these, because you can see a sort of jigzaw pattern on the top of the leaf. but on the bottom of a leaf there are tiny, guard cells, a guard cell is a cell that lets in carbon dioxide to the leaf, but only on the bottom of the leaf. if you have ever wondered why a leaf is greener on the top, than the bottom of a leaf, is because, sunlight can easily reach the top of a leaf, this is called photosynthesis, but on the bottom of a leaf, it only gets sunlight from refections from the ground, because the bottom of the leaf does not have any visible contact with the sun.
The surface area between the tip and the bottom of a leaf is called the lamina. The lamina is attached to the plant stem by the petiole. The lamina is supported by veins, which carry nutrients to the leaf tissue.
I don't know if they protect the leaf but there are stomata on the bottom of a leaf. Hope this helps! Sorry for being unreliable...
There is more chlorophyll in the top of the leaf than there is on the bottom
The stomata, which are small pores typically found on the underside of the leaf, release water vapor through a process called transpiration. This helps to regulate the water content and maintain the plant's turgidity.
The transparent layer of cells on the bottom of a leaf that acts like skin is called the cuticle. It helps protect the leaf from water loss and pathogens while allowing light to pass through for photosynthesis.
The cuticle in a leaf is the waxy covering on top and bottom of the leaf. It is used to conserve water.
the bottom will have more chlorophyll
The key features of simple leaf anatomy include a single blade, a main vein called the midrib, smaller veins branching out from the midrib, and a petiole that connects the leaf to the stem. The leaf is typically flat and thin, with a top surface called the adaxial surface and a bottom surface called the abaxial surface. The outer layer of the leaf is called the epidermis, which contains stomata for gas exchange and a waxy cuticle to prevent water loss.
If there is a leaf on the bottom of water, the leaf will grow into another plant.