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Aspleniaceae
Cystopteris
Cystopteris protrusa
Cystopteris protrusa
(Weath.) Blasdell, 1963
10% complete
Lowland brittle fern
Mem. Torrey Bot. Club 21(4): 41 (1963)
Specifications
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Synonyms
Cystopteris fragilis var. protrusa
Weath.
Cystopteris fragilis f. protrusa
(Weath.) Clute