Gastroclonium ovatum
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Rhodymeniales
- family: Champiaceae
- genus: Gastroclonium
- species: Gastroclonium ovatum
- Antibes
B8
France- Areosa
- Viana do Castelo
Viana do Castelo
Portugal- Pacific Grove
- Santa Cruz
California
United States