| Name | Orthotrichum affine Schrader ex Bridel |
| Authorship | Schrader ex Bridel |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Orthotrichum |
| Contains | Orthotrichum affine subsp. sordidum (Sullivant & Lesquereux) Grout Orthotrichum affine subsp. subrivale Kindberg |
| Citation | 1801 Muscol. Recent. 2(2): 22 |
| Holdings | 41 Specimens held in the Harvard University Herbaria identified as Orthotrichum affine Schrader ex Bridel |
| Identification made in | [no date] (41) |