| Name | Eupatorium coelestinum f. illinoensis Benke |
| Authorship | Benke |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium coelestinum Linnaeus |
| Citation | 1933 Rhodora 35: 46 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Eupatorium coelestinum f. illinoensis Benke |
| Identification made in | [no date] (1) |
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