| Name | Euphorbia schlechtendalii var. nelsonii (Millspaugh) McVaugh |
| Authorship | (Millspaugh) McVaugh |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Euphorbia schlechtendalii Boissier |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Euphorbia schlechtendalii var. nelsonii (Millspaugh) McVaugh |
| Identification made in | 1993 (1) |