interrupted fern

noun

Definition of interrupted fern

: an American fern (Osmunda claytoniana) with tall erect pinnate fronds and a few pairs of sporogenous pinnae borne at or near the center of the fertile fronds

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“Interrupted fern.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interrupted%20fern. Accessed 28 Sep. 2020.

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