Polysiphonia howei
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Rhodomelaceae
- genus: Polysiphonia
- species: Polysiphonia howei
Tierras Nuevas Poniente
Manati
Puerto Rico
Hāna- Iroquois Point
- Kailua
- ‘Ewa Beach
Hawaii
United States