Pterothamnion plumula
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Ceramiaceae
- genus: Pterothamnion
- species: Pterothamnion plumula
Dubrovnik
Dubrovačko-Neretvanska
Croatia- France
Nortorf
Schleswig-Holstein
Germany
Porto
Porto
Portugal
Carrickfergus
Northern Ireland
North Berwick
Scotland
United Kingdom
Long Branch
Oceanport
West Long Branch
New Jersey
Greenport
Greenport West
New York
Jamestown
Rhode Island
United States
Grandcamp-Maisy