| Name | Euphorbia flagelliformis (Engelmann) Engelmann |
| Authorship | (Engelmann) Engelmann |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Euphorbia Linnaeus |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Euphorbia flagelliformis (Engelmann) Engelmann |
| Identification made in | [no date] (1) |