Polysiphonia hendryi
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Rhodomelaceae
- genus: Polysiphonia
- species: Polysiphonia hendryi
Nanaimo
Prince Rupert
Sooke
Tofino
Victoria
British Columbia
CanadaSitka
AlaskaIsla Vista
Pacifica
San Pedro
California
United States