| Name | Eupatorium polanthum Klatt |
| Authorship | Klatt |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium Linnaeus |
| GUID | urn:lsid:ipni.org:names:100684-2 |
| Citation | 1895 Leopoldina 1895: 3 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Eupatorium polanthum Klatt |
| Identification made in | [no date] (1), 1981 (1) |