Sphacelaria radicans
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Sphacelariales
- family: Sphacelariaceae
- genus: Sphacelaria
- species: Sphacelaria radicans
Nortorf
Schleswig-Holstein
Germany
Freuchie
Scotland
United Kingdom
Cohasset
Massachusetts
Cold Spring Harbor
Laurel Hollow
New York
United States