| Name | Eupatorium quinquesetum Bentham ex Oersted |
| Authorship | Bentham ex Oersted |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium Linnaeus |
| Citation | 1853 Vidensk. Meddel. Naturhist. Foren. Kjøbenhavn 79 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Eupatorium quinquesetum Bentham ex Oersted |
| Identification made in | [no date] (1), 1981 (3) |