| Name | Euphorbia arizonica Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Euphorbia Linnaeus |
| GUID | urn:lsid:ipni.org:names:101300-2 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Euphorbia arizonica Engelmann |
| Identification made in | 1934 (1), 1937 (2), 2008 (1) |