The word frond literally refers to a huge, divided leaf. Like all leaves, fronds normally have a stalk to support a flattened blade. The stalk is usually called a petiole and the blade is usually called a lamina. The frond’s petiole is often called a stipe and once the stipe continues into the blade segment, it is called the rachis. Fronds are the equivalent of compounded leaves in an angiosperm. The term frond is used instead because fronds often carry the fertile structures of a plant on the underside.


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