It is the thin flat part of a leaf.
blade
It is the stalk that attaches the leaf to the plant stem.
petiole
It is the main vein that caries water and other substances to and from a broad leaf.
midrib
vascular bundles forming the framework of a leaf.
veins
These are the small holes or pores in the underside of the leaf.
stomata
When the stomata open, a little bit of the leaf's water falls out and released as water vapor.
transpiration
