Ferocactus alamosanus subsp. reppenhagenii (G.Unger) N.P.Taylor in Cactaceae Consensus Init. 6: 15. 1998 sec. Hunt 2006
- ≡Ferocactus reppenhagenii G.Unger in Kakteen And. Sukk. 25(3): 50. 1974 syn. sec. Hunt 2006
- ≡Parrycactus reppenhagenii (G.Unger) Doweld in Novosti Sist. Vyssh. Rast. 32: 118. 2000 syn. sec. Kew WCVP (2019)
- ≡Parrycactus alamosanus subsp. reppenhagenii (G.Unger) Doweld in Sukkulenty 3: 36. 2000 syn. sec. ???