Helminthocladia purpurea
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Nemaliales
- family: Liagoraceae
- genus: Helminthocladia
- species: Helminthocladia purpurea
Saint George
Saint George
Bermuda
Nortorf
Schleswig-Holstein
Germany
San Pedro
California
United States