long-bracted sedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Carex
- species: Carex extensa
- Blankenberge
- Knokke-Heist
- Nieuwpoort
- Wenduine
- Zeebrugge
Flanders
Belgium- Norddeich
- Otterndorf
Lower Saxony- Norddorf
Schleswig-Holstein
Germany- Lefkáda
Ionian Islands
Greece- Kallinge
- Karlshamn
- Karlskrona
- Nättraby
- Ronneby
- Sturkö
- Sölvesborg
Blekinge- Klintehamn
- Visby
Gotland- Karlholmsbruk
- Marieberg
- Skutskär
- Öregrund
Uppsala
Sweden- East Boldon
- Hartlepool
- The Boldons
England
United Kingdom- Cold Spring Harbor
- Coney Island
- Laurel Hollow
New York- Norfolk
- Portsmouth
Virginia
United States