Riccardia sinuata
- kingdom: Plantae
- phylum: Marchantiophyta
- class: Jungermanniopsida
- order: Metzgeriales
- family: Aneuraceae
- genus: Riccardia
- species: Riccardia sinuata
- Baie-Mahault
Guadeloupe
Guadeloupe- Dutch Harbor
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Alaska- Yosemite Valley
California- Colchester
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Connecticut- Tavernier
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Rhode Island
United States