slender-toothed earth moss
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Funariales
- family: Ephemeraceae
- genus: Ephemerum
- species: Ephemerum spinulosum
Kamloops
British Columbia- Bois-des-Filion
Quebec
Canada
Cheshire- Cheshire Village
- East Haven
- Farmington
- Hartford
- Orange
- West Hartford
Connecticut- Jacksonville
- Sanford
Florida- Bridge City
- Elmwood
- Harahan
- Jefferson
- Lafayette
- River Ridge
Louisiana- Amesbury
Massachusetts- Winona
Minnesota- Bloomfield
- Borough of Bronx
- Goshen
- Sea Cliff
- Sparkill
New York- Swansboro
North Carolina- Dayton
Tennessee
United States