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leaf
Usually thin and flat part of a vegetable that grows out of the stem and is specially adapted to capturing light and performing photosynthesis.
leaf margin
Leaf edges vary markedly, depending on the shape and depth of their indentations.
simple leaves
Leaves with an undivided blade; there are many types, grouped according to shape.
compound leaves
Leaves with blades divided into several distinct sections, called folioles, the arrangement of which determines the leaf type.