Knowlton's bryum
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Bryales
- family: Bryaceae
- genus: Bryum
- species: Bryum knowltonii
- Helsinki
Central Finland
Finland- Germany
- Świnoujście
West Pomerania
Poland- Bury St Edmunds
- Framlingham
- Horwich
England
United Kingdom- Seattle
Washington
United States