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