| Name | Ageratum perplexans M. F. Johnson |
| Authorship | M. F. Johnson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Ageratum Linnaeus |
| GUID | urn:lsid:ipni.org:names:175538-1 |
| Citation | 1971 Ann. Missouri Bot. Gard. 58: 80 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ageratum perplexans M. F. Johnson |
| Identification made in | 1976 (1), 1985 (1) |