| Name | Eupatorium ferrugineum var. paraguariense Hassler |
| Authorship | Hassler |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium ferrugineum Gardner |
| GUID | urn:lsid:ipni.org:names:99956-2 |
| Citation | 1912 Repert. Spec. Nov. Regni Veg. 11: 168 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Eupatorium ferrugineum var. paraguariense Hassler |
| Identification made in | [no date] (1), 1982 (1) |