Janczewskia gardneri
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Rhodomelaceae
- genus: Janczewskia
- species: Janczewskia gardneri
Sooke
British Columbia
Canada
Bolinas- Carmel-by-the-Sea
- Pacific Grove
California- Barview
Oregon
United States