| Name | Eupatorium capillifolium (Lamarck) Small |
| Authorship | (Lamarck) Small |
| Rank | Species |
| Placed in | Eupatorium Linnaeus |
| Citation | 1894 Mem. Torrey Bot. Club 5: 311 |
| Holdings | 89 Specimens held in the Harvard University Herbaria identified as Eupatorium capillifolium (Lamarck) Small |
| Identification made in | [no date] (65), 1969 (24) |