Ludwigia irwinii
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Myrtales
- family: Onagraceae
- genus: Ludwigia
- species: Ludwigia irwinii
Diamantina
Minas Gerais- Silva Jardim
Rio de Janeiro
Brazil
Ludwigia irwinii Diamantina Silva Jardim