Pickerel-weed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Commelinales
- family: Pontederiaceae
- genus: Pontederia
- species: Pontederia cordata
- Belgium
- Barreiras
Bahia- Brasília
Federal District- São Bento
Maranhão- Corumbá
- Eldorado
- Miranda
- Sidrolândia
Mato Grosso do Sul- Cambuí
- Diamantina
Minas Gerais- São Leopoldo
Rio Grande do Sul- Arraial do Cabo
- Guapimirim
Rio de Janeiro- Lages
Santa Catarina- Bauru
São Paulo
Brazil- Saint Andrews
New Brunswick
Canada- Sneek
Friesland- Bennekom
- Wageningen
Gelderland- Boskoop
- Groenswaard
- Oranjewijk
- Vondelwijk
- Waddinxveen
South Holland- Woerden
Utrecht
Netherlands- Ypacarai
Central
Paraguay- Halmstad
Halland- Bjärred
Skåne- Bergshamra
- Djursholm
Stockholm- Furulund
Västra Götaland
Sweden- Florala
- Gulf Shores
- Mobile
Alabama- Hartford
- North Grosvenor Dale
- Thompson
Connecticut- Honolulu
Hawaii- Calais
- East Machias
Maine- Harvard
Massachusetts- Stevensville
Michigan- Camden
New Jersey- Borough of Bronx
- Manhattan
New York- Biltmore Forest
- Wilson
North Carolina- Lincoln City
Oregon- Lancaster
Pennsylvania- Pinehurst
Texas- Washington, D. C.
Washington, D.C.
United States