| 1 | Orthotrichum | anomalum | Anomalous Bristle-Moss | Mosses | Orthotrichaceae | Bryopsida |
| 2 | Orthotrichum | diaphanum | White-Tipped Bristle-Moss | Mosses | Orthotrichaceae | Bryopsida |
| 3 | Orthotrichum | obtusifolium | Obtuseleaf Aspen Moss | Mosses | Orthotrichaceae | Bryopsida |
| 4 | Orthotrichum | ohioense | Ohio Orthotrichum Moss | Mosses | Orthotrichaceae | Bryopsida |
| 5 | Orthotrichum | pumilum | No Common Name | Mosses | Orthotrichaceae | Bryopsida |
| 6 | Orthotrichum | pusillum | No Common Name | Mosses | Orthotrichaceae | Bryopsida |
| 7 | Orthotrichum | sordidum | Dark-Green Bristle Moss | Mosses | Orthotrichaceae | Bryopsida |
| 8 | Orthotrichum | stellatum | Stellate Orthotrichum Moss | Mosses | Orthotrichaceae | Bryopsida |
| 9 | Orthotrichum | strangulatum | Strangulate Orthotrichum Moss | Mosses | Orthotrichaceae | Bryopsida |