| Name | Eupatorium thielianum Klatt |
| Authorship | Klatt |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium Linnaeus |
| Citation | 1892 Bull. Soc. Roy. Bot. Belgique 31: 191 |
| Holdings | 11 Specimens held in the Harvard University Herbaria identified as Eupatorium thielianum Klatt |
| Identification made in | [no date] (8), 1969 (1), 1981 (1), 1982 (1) |