Liddon sedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Carex
- species: Carex petasata
Burns Lake- Merritt
British Columbia- Haines Junction
Yukon
Canada
Estes Park- Georgetown
Colorado- Cascade
Idaho- Eureka
Montana- Neligh
Nebraska
United States