Echinocereus sciurus subsp. floresii (Backeb.) N.P. Taylor in Cactaceae Consensus Init. 3: 10. 1997 sec. Hunt 2016
- ≡Echinocereus floresii Backeb. in Blätt. Sukkulentenk. 1: 5. 1949 syn. sec. Guzmán & al. 2003
- =Echinocereus sciurus var. floresii (Backeb.) N.P. Taylor, Gen. Echinocereus: 115. 1985 syn. sec. Guzmán & al. 2003
- =Echinocereus bristolii subsp. floresii (Backeb.) W. Blum & Mich. Lange, Echinocereus: 348. 1998 syn. sec. Guzmán & al. 2003