Riccia crystallina
- kingdom: Plantae
- phylum: Marchantiophyta
- class: Marchantiopsida
- order: Marchantiales
- family: Ricciaceae
- genus: Riccia
- species: Riccia crystallina
- Day Valley
- Lake Elsinore
- San Francisco
California- Colorado Springs
Colorado- Lafayette
Louisiana- Great Falls
Montana- Union
Oregon- Friday Harbor
Washington
United States