| Name | Pycnanthemum monotrichum Fernald |
| Authorship | Fernald |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pycnanthemum |
| GUID | urn:lsid:ipni.org:names:455225-1 |
| Citation | 1945 Rhodora 47: 176, plate 903 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Pycnanthemum monotrichum Fernald |
| Identification made in | [no date] (3), 1945 (1) |