West Indian marsh grass
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Poaceae
- genus: Hymenachne
- species: Hymenachne amplexicaulis
Riberalta
El Beni
BoliviaBorba
AmazonasRedenção
CearáBrasília
Federal DistrictMiranda
Mato Grosso do SulLeopoldina
Minas GeraisSilva Jardim
Rio de JaneiroItajaí
Navegantes
Santa Catarina
BrazilBarbosa
Antioquia
ColombiaSan José
Alajuela
Costa RicaSantiago de las Vegas
Havana
CubaNizao
Peravia
Dominican RepublicMana
Guyane
French GuianaGeorgetown
Demerara-MahaicaNew Amsterdam
East Berbice-CorentyneRosignol
Mahaica-Berbice
GuyanaPalizada
CampecheMapastepec
ChiapasSan Patricio
JaliscoHueytamalco
PueblaCuliacán
Sinaloa
MexicoGroningen
Saramacca
SurinameChaloem Phra Kiat
BuriramBorabue
Maha Sarakham
Thailand