A flower bearing leaf is called a bract.
The leaf of a flower uses the sun to produce food for the flower. This is called photosynthesis.
A small shoot that will grow into a leaf or flower is called a bud.
Pistil
I think it's also called "The Christmas flower" or "The Lobster flower".
The single-leaf Pinyon tree is Nevada's state tree.
non flowering plant
if you mean the green leaf-like structure below the petals, it is what you called SEPALS... Collectively, they are called CALYX...
Stamem
A seedling, a yound tree plant is referred to as a sapling
The Carpel is a leaf like, seed-bearing structure that makes up the innermost whorl of the flower. The seed development takes place within the carpel.
flower leaf
ottawas flower is the maple leaf