Riccia austinii
- kingdom: Plantae
- phylum: Marchantiophyta
- class: Marchantiopsida
- order: Marchantiales
- family: Ricciaceae
- genus: Riccia
- species: Riccia austinii
Saint Francisville
Winnfield
LouisianaAlpine
Closter
Demarest
Harrington Park
Norwood
New Jersey
United States