southern bluet
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Gentianales
- family: Rubiaceae
- genus: Houstonia
- species: Houstonia micrantha
Evergreen- Hamilton
- Northport
- Ozark
- Phenix City
- Tuscaloosa
Alabama- Columbus
Georgia- New Albany
Mississippi- Poplar Bluff
Missouri
United States