| Name | Eupatorium sexangulare (Klatt) B. L. Robinson |
| Authorship | (Klatt) B. L. Robinson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium Linnaeus |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Eupatorium sexangulare (Klatt) B. L. Robinson |
| Identification made in | [no date] (3), 1987 (1) |