Carolina mosquitofern
- kingdom: Plantae
- phylum: Tracheophyta
- class: Polypodiopsida
- order: Salviniales
- family: Salviniaceae
- genus: Azolla
- species: Azolla caroliniana
- Joinville
Santa Catarina
Brazil- Revelstoke
British Columbia
Canada- Turbo
Antioquia
Colombia- Mana
Guyane
French Guiana- San Nicolás Tecomatlán
Hidalgo
Mexico- Voorschoten
South Holland
Netherlands- Barceloneta
- Garrochales
Barceloneta- Guayanilla
- Magas Arriba
Guayanilla- Juncos
Municipio de Juncos
Puerto Rico- Borough Green
- Chislehurst
- Sidcup
- Southampton
- Welwyn
England
United Kingdom- Athens
- Elmore
- Hayneville
Alabama- Cabin John
- Potomac Heights
Maryland- Bayonne
New Jersey- Borough of Bronx
- Buffalo
- Sound Beach
New York
United States