Hexasepalum mello-barretoi
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Gentianales
- family: Rubiaceae
- genus: Hexasepalum
- species: Hexasepalum mello-barretoi
Morro do Chapéu
BahiaVespasiano
Minas Gerais
Brazil