Diplazium ambiguum
- kingdom: Plantae
- phylum: Tracheophyta
- class: Polypodiopsida
- order: Polypodiales
- family: Athyriaceae
- genus: Diplazium
- species: Diplazium ambiguum
Antonina
Paraná
Petrópolis
Rio de Janeiro
Teresópolis
Rio de Janeiro
Brazil
Zamora
Zamora-Chinchipe
Ecuador
Tarapoto
San Martín
Peru
Chateaubelair
Saint David
Saint Vincent And Grenadines