Parodia erubescens (Osten) D.R.Hunt in Cactaceae Consensus Init. 4: 6. 1997 sec. Hunt 1997
- ≡Echinocactus erubescens Osten pro hybr. in Anales Mus. Hist. Nat. Montevideo, ser. 2, 5(1): 47. 1941 syn. sec. Nyffeler 2021
- ≡Notocactus erubescens (Osten) Marchesi in Bol. Soc. Argent. Bot. 14(3): 248. 1972 syn. sec. IPNI 2000+
- ≡Ritterocactus erubescens (Osten) Doweld in Sukkulenty 2(2): 22. 1999 syn. sec. Kew WCVP (2019)
- =Notocactus schlosseri Vliet in Succulenta (Netherlands) 53: 12. 1974 syn. sec. TROPICOS 1988+
- ≡Notocactus ×erubescens f. schlosseri (Vliet) N.Gerloff & Neduchal in Internoto 25: 57. 2004 syn. sec. Kew WCVP (2019)
