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Diplazium expansum (Great Fern) is a species of perennial herb in the family Athyriaceae. They are native to Rio Grande Do Sul, Pernambuco, Paraná, Rio De Janeiro, Puerto Rico, Espirito Santo, SãO Paulo, Alagoas, Mata Atlântica, Santa Catarina, Minas Gerais, and Bahia. They have alternation of generations.

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EOL has data for 13 attributes, including:

Known occurrences, collected specimens and observations of Great Fern. View this species on GBIF