Long's sedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Carex
- species: Carex longii
São Leopoldo
Rio Grande do Sul
Brazil
Mobile
Alabama- Anderson
California- Bridgeport
- Central Waterford
- East Hartford
- New London
Connecticut- Delmar
- Dover
- Georgetown
- Millsboro
- Milton
Delaware- Athens
Illinois- Arabi
- Covington
- Estelle
- Mandeville
- Oak Hills Place
Louisiana- Ferrysburg
- Grand Haven
Michigan- Biloxi
- Pass Christian
Mississippi- Atlantic City
- Brownville
- Cape May
- Cape May Court House
- Cinnaminson
- Erma
- Farmingdale
- Forked River
- Lakehurst
- Leisure Knoll
- Little Silver
- Matawan
- Metuchen
- Millville
- North Wildwood
- Red Bank
- Riverton
- Shark River Hills
- Shrewsbury
- South Amboy
- South Plainfield
- Strathmore
- West Belmar
- West Cape May
- Wildwood
New Jersey- Amityville
- Baldwin
- Baldwin Harbor
- Bay Park
- Bellmore
- Bellport
- Brookhaven
- Cedarhurst
- Copiague
- Coram
- East Hampton
- East Hampton North
- East Massapequa
- East New York
- East Rockaway
- East Shoreham
- Freeport
- Garden City
- Glen Head
- Glenwood Landing
- Hempstead
- Herricks
- Hewlett
- Hewlett Harbor
- Hicksville
- Jamaica
- Lake Grove
- Lake Ronkonkoma
- Lakeview
- Lawrence
- Lynbrook
- Manhasset Hills
- Manhattan
- Manorville
- Mastic
- Merrick
- Middle Island
- Montauk
- Moriches
- North Amityville
- North Hills
- Oceanside
- Old Brookville
- Rockville Centre
- Ronkonkoma
- Roslyn Harbor
- Sea Cliff
- Searingtown
- Shirley
- South Valley Stream
- Southold
- Staten Island
- Uniondale
- Wantagh
- Woodmere
New York- Mountain Top
- Palmerton
Pennsylvania- North Kingstown
- Providence
- Smithfield
Rhode Island- Oak Grove
South Carolina- Norfolk
- Portsmouth
- Virginia Beach
Virginia- Long Beach
Washington- Washington, D. C.
Washington, D.C.
United States