Galium megapotamicum
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Gentianales
- family: Rubiaceae
- genus: Galium
- species: Galium megapotamicum
Curitiba- São José dos Pinhais
Paraná- Campos Novos
Santa Catarina- Itararé
- Mogi Guaçu
- Mogi das Cruzes
São Paulo
Brazil