| Name | Eupatorium laevigatum var. serratifolium Hassler |
| Authorship | Hassler |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium laevigatum Lamarck |
| Citation | 1915 Repert. Spec. Nov. Regni Veg. 14: 282 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Eupatorium laevigatum var. serratifolium Hassler |
| Identification made in | [no date] (2), 1982 (2), 2007 (1) |
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