Oval-leaf sedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Carex
- species: Carex cephalophora
- Bells Corners
- Kitchener
- Mississauga
- Ottawa
- Waterloo
Ontario
Canada- Cullman
- Northport
- Tuscaloosa
Alabama- Little Rock
- North Little Rock
Arkansas- Wilmington
Delaware- Stone Mountain
Georgia- Coralville
- Keokuk
Iowa- Arbutus
- Beltsville
- Berwyn Heights
- Bladensburg
- Brentwood
- Brookmont
- Cabin John
- Chesapeake Beach
- Cheverly
- Chillum
- College Park
- Colmar Manor
- Cottage City
- East Riverdale
- Easton
- Edmonston
- Forest Glen
- Gambrills
- Hyattsville
- Langley Park
- Mount Rainier
- North Beach
- Point of Rocks
- Potomac Heights
- Riverdale Park
- Silver Spring
- South Kensington
- Takoma Park
Maryland- Bemidji
- Center City
Minnesota- Independence
- Mansfield
Missouri- Hinsdale
New Hampshire- Baldwin
- Borough of Bronx
- Borough of Queens
- Bronxville
- Buffalo
- Cayuga Heights
- Cold Spring Harbor
- Crompond
- East Ithaca
- Glen Head
- Glenwood Landing
- Greenvale
- Herkimer
- Herricks
- Inwood
- Ithaca
- Lake Mohegan
- Lattingtown
- Laurel Hollow
- Locust Valley
- Manhasset Hills
- Manhattan
- Mohawk
- Montauk
- Mount Kisco
- Mount Vernon
- Munsey Park
- Newark
- North Hills
- Old Brookville
- Penn Yan
- Pomona
- Pound Ridge
- Roslyn
- Roslyn Estates
- Roslyn Harbor
- Roslyn Heights
- Searingtown
- South Hempstead
- South Hill
- Wading River
- Wheatley Heights
- Williamsville
- Wyandanch
- Yonkers
New York- Hazelwood
- Tryon
- Waynesville
North Carolina- Cranston
- Providence
Rhode Island- Brownsville
Tennessee- Beaumont
- Huntsville
Texas- Washington, D. C.
Washington, D.C.- Milton
West Virginia- Allouez
- Brillion
- Fort Atkinson
- Green Bay
- Kaukauna
- Racine
- Williams Bay
Wisconsin
United States