| Name | Eupatorium purpureum f. decolor F. Seymour |
| Authorship | F. Seymour |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium purpureum Linnaeus |
| GUID | urn:lsid:ipni.org:names:100761-2 |
| Citation | 1969 Fl. Vermont, ed. 4 344 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Eupatorium purpureum f. decolor F. Seymour |
| Identification made in | [no date] (2) |
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