- PacNW Herbaria Records for Ditrichum ambiguum
- Search Arctos Database for Ditrichum ambiguum (Southeast only)
- Search Arctos Database for Ditrichum ambiguum (entire database)
- Encyclopedia of Life search for Ditrichum ambiguum
- iNaturalist Observations for Ditrichum ambiguum in Southeast Alaska
Southeastern Alaska Distribution: New to the region. Known from San Juan Bautist Island, southwest of Craig, Worley and Hamilton 7266.
Habitat: The Alaskan material was growing as an extensive thin film over a steep, wet mud and sand erosion slope in a forested stream gully. The species is commonly found on barren banks.
Comments: Specimn 7266 was fertile. This collection is the northernmost record of the species.