| Name | Orthotrichum columbicum Mitten |
| Authorship | Mitten |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Orthotrichum |
| Citation | 1864 J. Proc. Linn. Soc., Bot. 8: 24 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Orthotrichum columbicum Mitten |
| Identification made in | [no date] (3), 2012 (4) |