iron fern
- kingdom: Plantae
- phylum: Tracheophyta
- class: Polypodiopsida
- order: Polypodiales
- family: Dryopteridaceae
- genus: Rumohra
- species: Rumohra adiantiformis
Villa Lugano
Buenos Aires F.D.
ArgentinaNova Petrópolis
São Leopoldo
Rio Grande do SulItatiaia
Rio de JaneiroCampos do Jordão
Diadema
Ibiúna
Itanhaém
Santos
São Paulo
BrazilTobosí
CartagoCalle Blancos
Colima
San José
San Juan
San José
Costa RicaDubreuil
Moka
MauritiusGöteborg
Västra Götaland
Sweden