| Name | Eupatorium congestum Hooker & Arnott |
| Authorship | Hooker & Arnott |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium Linnaeus |
| GUID | urn:lsid:ipni.org:names:99754-2 |
| Citation | 1836 Compan. Bot. Mag. 1: 239 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Eupatorium congestum Hooker & Arnott |
| Identification made in | [no date] (4), 1982 (1), 2007 (1) |