| Name | Eupatorium occidentale var. arizonicum A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Eupatorium occidentale Hooker |
| GUID | urn:lsid:ipni.org:names:100514-2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Eupatorium occidentale var. arizonicum A. Gray |
| Identification made in | [no date] (1) |