| 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) |