Gymnocalycium pugionacanthum
Gymnocalycium pugionacanthum in Kakteen And. Sukk. 38: 191. 1987 sec. Charles 20091
- =Gymnocalycium catamarcense in Gymnocalycium 8: 142. 1995 syn. sec. Charles 20092
- =Gymnocalycium catamarcense f. belense in Gymnocalycium 8: 144. 1995 syn. sec. Kew WCVP (2019)3
- =Gymnocalycium catamarcense f. ensispinum in Gymnocalycium 8: 143. 1995 syn. sec. WFO 20194
- =Gymnocalycium catamarcense f. montanum in Gymnocalycium 8: 143. 1995 syn. sec. Charles 20095
- =Gymnocalycium catamarcense subsp. acinacispinum in Gymnocalycium 8: 146. 1995 syn. sec. Charles 20096
- =Gymnocalycium schmidianum subsp. asperum in Schütziana 6(1): 22. 2015 syn. sec. Metzing 20219
- 9. Metzing, D. 2021: Revisions of Frailea, Gymnocalycium and various other genera. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. http://doi.org/10.3372/wi.51.51208
- =Gymnocalycium pugionacanthum var. stejskalii in Cactaceae etc. 27(4): 68-69. 2017 syn. sec. Metzing 202110
- 10. Metzing, D. 2021: Revisions of Frailea, Gymnocalycium and various other genera. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. http://doi.org/10.3372/wi.51.51208