Pacific oakfern
- kingdom: Plantae
- phylum: Tracheophyta
- class: Polypodiopsida
- order: Polypodiales
- family: Cystopteridaceae
- genus: Gymnocarpium
- species: Gymnocarpium disjunctum
Fort McMurray
Alberta
Canada
Seward
Alaska- Durham
- New Britain
- Plainville
- Terryville
- Thomaston
- Waterbury
Connecticut- Hood River
Oregon- Spokane
Washington
United States