Ditrichum ambiguum
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Dicranales
- family: Ditrichaceae
- genus: Ditrichum
- species: Ditrichum ambiguum
Bonny Doon- Eureka
California- Boulevard Park
- Riverton
- Seattle
- Snoqualmie
Washington
United States