| Name | Eupatorium espinosarum var. ambiguum A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium espinosarum A. Gray |
| GUID | urn:lsid:ipni.org:names:99936-2 |
| Citation | 1879 Proc. Amer. Acad. Arts 15: 28 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Eupatorium espinosarum var. ambiguum A. Gray |
| Identification made in | [no date] (2), 1981 (1) |
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