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Lowland Brittle Fern
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Cystopteris fragilis var. protrusa
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Polypodiopsida
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Polypodiales
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Woodsiaceae
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E-Canada (Ontario), NE-USA, C-USA, E-USA (Alabama, Arkansas, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, Wisconsin)
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ja
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