scrabrous black sedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Carex
- species: Carex atratiformis
Fort Nelson
British Columbia- Norman Wells
Northwest Territories- Cap-Chat
- Gaspé
- Rivière-du-Loup
Quebec- Dawson City
- Haines Junction
Yukon
Canada
Cripple Creek- Georgetown
Colorado
United States