| Name | Pycnanthemum pycnanthemoides (Leavenworth) Fernald |
| Authorship | (Leavenworth) Fernald |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pycnanthemum |
| Contains | Pycnanthemum pycnanthemoides var. viridifolium Fernald |
| Holdings | 36 Specimens held in the Harvard University Herbaria identified as Pycnanthemum pycnanthemoides (Leavenworth) Fernald |
| Identification made in | [no date] (35), 2003 (1) |