Timmiella crassinervis
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Pottiales
- family: Pottiaceae
- genus: Timmiella
- species: Timmiella crassinervis
Abbotsford
Chilliwack
Langford
British Columbia
CanadaEmerald Lake Hills
CaliforniaFriday Harbor
Mercer Island
Olympia
Seattle
Washington
United States