Hypnum crista-castrensis
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Hypnales
- family: Hypnaceae
- genus: Hypnum
- species: Hypnum crista-castrensis
Beloeil
Mont-Saint-Hilaire
Rigaud
Quebec
CanadaCayuga Heights
East Ithaca
Ithaca
Northeast Ithaca
New York
United States