Tibouchina dubia
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Myrtales
- family: Melastomataceae
- genus: Tibouchina
- species: Tibouchina dubia
Campo Largo- Lapa
- Rio Branco do Sul
Paraná- Campinas
- Lages
- São Joaquim
Santa Catarina
Brazil