Ludwigia torulosa
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Myrtales
- family: Onagraceae
- genus: Ludwigia
- species: Ludwigia torulosa
Vespasiano
Minas Gerais
Brazil
Buenos Aires
Puntarenas
Costa Rica
Mana
Guyane
French Guiana
Bartica
Cuyuni-Mazaruni
Guyana