| 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) |