| Name | Echinopsis maximiliana Heyder ex A. Dietrich |
| Authorship | Heyder ex A. Dietrich |
| Rank | Species |
| Placed in | Echinopsis |
| Citation | 1846 Allg. Gartenzeitung [Otto & Dietrich] 14: 250 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Echinopsis maximiliana Heyder ex A. Dietrich |
| Identification made in | [no date] (1) |