| Name | Pediocactus simpsonii var. minor (Engelmann) Cockerell | 
| Authorship | (Engelmann) Cockerell | 
| Rank | Variety | 
| Placed in | Pediocactus simpsonii (Engelmann) Britton & Rose | 
| Citation | 1918 Torreya 18: 180 | 
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Pediocactus simpsonii var. minor (Engelmann) Cockerell | 
| Identification made in | [no date] (6) | 
