| Name | Echinopsis multiplex (Pfeiffer) Pfeiff. & Otto |
| Authorship | (Pfeiffer) Pfeiff. & Otto |
| Rank | Species |
| Placed in | Echinopsis |
| Citation | 1838 Abbild. Beschr. Cact. 1: t. 4 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Echinopsis multiplex (Pfeiffer) Pfeiff. & Otto |
| Identification made in | [no date] (1) |