| Name | Eurhynchium praelongum var. californicum Grout |
| Authorship | Grout |
| Rank | Variety |
| Placed in | Eurhynchium praelongum (Hedwig) Schimper |
| Citation | 1898 Bull. Torrey Bot. Club 25: 248 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Eurhynchium praelongum var. californicum Grout |
| Identification made in | [no date] (2) |