Gymnocalycium monvillei subsp. achirasense (H.Till & Schatzl) H.Till in Gymnocalycium 6(3): 102. 1993 sec. Kew WCVP (2019)
- ≡Gymnocalycium achirasense H.Till & Schatzl in Kakteen And. Sukk. 38(8): 191. 1987 syn. sec. ???
- ≡Gymnocalycium horridispinum var. achirasense (H.Till & Schatzl) Lodé in Cact. Avent. 27: 29. 1995 syn. sec. ???
- ≡Gymnocalycium horridispinum subsp. achirasense (H.Till & Schatzl) G.J.Charles, Gymnocalycium Habitat Culture: 154. 2009 syn. sec. ???
- =Gymnocalycium monvillei var. chacrasense Neuhuber in Gymnocalycium 6: 105. 1993 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium achirasense var. chacrasense (Neuhuber) V.Gapon, 11000 km Argentina Kaktusy: 89. 2010 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium achirasense subsp. chacrasense (Neuhuber) Neuhuber & V.Gapon, Cact. Explor. 15: 72. 2016 syn. sec. Kew WCVP (2019)
- =Gymnocalycium monvillei var. echinatum Neuhuber in Gymnocalycium 6: 108. 1993 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium achirasense subsp. echinatum (Neuhuber) V.Gapon, 11000 km Argentina Kaktusy: 89. 2010 syn. sec. Kew WCVP (2019)
- =Gymnocalycium monvillei var. kainradliae Neuhuber in Gymnocalycium 6: 107. 1993 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium achirasense subsp. kainradliae (Neuhuber) V.Gapon, 11000 km Argentina Kaktusy: 89. 2010 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium orientale subsp. kainradliae (Neuhuber) Neuhuber & V.Gapon, Cact. Explor. 15: 71. 2016 syn. sec. Kew WCVP (2019)
- =Gymnocalycium monvillei var. orientale Neuhuber in Gymnocalycium 6: 103. 1993 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium achirasense var. orientale (Neuhuber) V.Gapon, 11000 km Argentina Kaktusy: 89. 2010 syn. sec. Kew WCVP (2019)
- ≡Gymnocalycium orientale (Neuhuber) Neuhuber & V.Gapon, Cact. Explor. 15: 70. 2016 syn. sec. Kew WCVP (2019)
- =Gymnocalycium orientale var. vikulovii Neuhuber & V.Gapon, Cact. Explor. 15: 72. 2016 syn. sec. Kew WCVP (2019)