Didymodon trifarius
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Pottiales
- family: Pottiaceae
- genus: Didymodon
- species: Didymodon trifarius
Berwick-Upon-Tweed
England
United Kingdom
East Foothills- Sacramento
California- Ann Arbor
Michigan- Watkins Glen
New York
United States