Desmarestia ligulata
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Desmarestiales
- family: Desmarestiaceae
- genus: Desmarestia
- species: Desmarestia ligulata
Campbell River- Oak Bay
- Parksville
- Sooke
- Tofino
British Columbia
Canada
Sitka
Alaska- Carmel-by-the-Sea
- Del Monte Forest
California- Friday Harbor
Washington
United States