Thelocactus hexaedrophorus subsp. lloydii (Britton & Rose) N.P. Taylor in Cactaceae Consensus Init. 5: 14. 1998 sec. Hunt 2016
- ≡Thelocactus lloydii Britton & Rose, Cactaceae (Britton & Rose) 4: 11. 1923 syn. sec. Guzmán & al. 2003
- =Thelocactus hexaedrophorus var. lloydii (Britton & Rose) Kladiwa & Fittkau, Kakteen 61: C VIIIb. 1975 syn. sec. Guzmán & al. 2003