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What is the underground stem of a fern?

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Quick Answer

The underground stem of a fern is called a rhizome. The rhizome is a short, vertical stem located near the soil surface. It is hard to see due to its length, unlike other plants that have visible, aerial stems.

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Full Answer

Because the rhizome is very short, the leaves are the more visible parts of a fern. These leaves are called fronds and are often clumped together. They die at the end of each growing season. Fronds differ greatly in size, growing up to 3 feet in length in some species. Fronds may also grow along the rhizome, which is less common than the clumped formation.

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