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What is it?

A Frond refers to a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns are referred to as fronds.

When most people use the word frond they mean a large, compound leaf, but if the term is used botanically to refer to the leaves of ferns, it may be applied to smaller and undivided leaves.

Fronds, like all leaves, usually have a stalk called the petiole supporting a flattened blade.