Thrasya petrosa
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Poaceae
- genus: Thrasya
- species: Thrasya petrosa
Livramento do Brumado
Bahia- Brasília
Federal District- Cristalina
Goiás- Carolina
Maranhão
Brazil