There are many types of leaves. Leaf type is defined as the type of leaf morphology. It is mainly linked to the botanical group of plants (Angiosperm and Gymnosperm).
The two main types of leaves are the broadleaves and the needle-leaves. Broadleaves is the most common type of leaves that can be encountered on flowering plants. Broadleaves are flat and broad. On another hand, needle-leaved plants have leaves shaped like needles that are, most of the time, persistent during winter.
Leaf type can be identified from ground observations (see here) but can also be determined through satellite/airborne-derived images.
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