I think it is thin. I also don't know!
I think it just contain food
The leaf with two-part structure: petiole (or stalk) and blade (thought of as leaf)
A stipule is a small, leaf-like structure found at the base of a leaf stalk. Its main function is to protect the leaf bud as it grows and to help regulate the flow of nutrients to the leaf.
This will depend on the cultivar of the sunflower.
Grass leaves are sessile and have no stalk , leaf base of grass leaf is sheathing .
yes
PetioleThe stalk by which a leaf is attached to a stem. Also called Leafstalk.
The angle where a leaf stalk joins the stem is known as the leaf axil. The angle at which the leaf stalk joins the stem can vary depending on the plant species and can be used as a characteristic for plant identification.
A silver maple leaf is simple, not compound. This means that each leaf blade is a single, undivided structure rather than being made up of multiple leaflets attached to a central stalk.
sunflower
smooth
how do the leaf stalk help to ensure that the leaf had absorb enough sunlight in order to make food