| Name | Pycnanthemum verticillatum var. pilosum (Nuttall) Cooperrider |
| Authorship | (Nuttall) Cooperrider |
| Rank | Variety |
| Placed in | Pycnanthemum verticillatum (Michaux) Persoon |
| Citation | 1984 Michigan Bot. 23(4): 166–167 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Pycnanthemum verticillatum var. pilosum (Nuttall) Cooperrider |
| Identification made in | [no date] (6), 2020 (1) |