Columbian sedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Carex
- species: Carex aperta
Agassiz- Prince George
- Sicamous
- Vanderhoof
British Columbia
Canada
Gilmanton
New Hampshire- Hayesville
- The Dalles
- Troutdale
Oregon- Dallesport
- Leavenworth
- Montesano
Washington
United States