Echinocereus stramineus subsp. occidentalis (N.P. Taylor) N.P. Taylor in Cactaceae Consensus Init. 3: 10. 1997 sec. Hunt 2016
- ≡Echinocereus stramineus var. occidentalis N.P. Taylor in Bradleya 6: 70. 1988 syn. sec. Guzmán & al. 2003
- =Echinocereus occidentalis (N.P. Taylor) W. Rischer, S. Breckw. & Breckw. in Echinocereenfreund 22(1): 23. 2008 syn. sec. Hunt 2016
- =Echinocereus occidentalis subsp. breckwoldtiorum De-Nova, Cast.-Lara & W. Blum in Xerophilia S7: 4. 2015 syn. sec. ???