Radula australis
- kingdom: Plantae
- phylum: Marchantiophyta
- class: Jungermanniopsida
- order: Porellales
- family: Radulaceae
- genus: Radula
- species: Radula australis
- San Diego de los Baños
Pinar del Río
Cuba- Augusta
Georgia- Pearl River
Louisiana- Gulf Hills
- Ocean Springs
Mississippi- Centerville
- Lincolnville
- Summerville
South Carolina
United States