Gymnocalycium gibbosum subsp. borthii (Koop ex H.Till) G.J.Charles in Cactaceae Syst. Init. 20: 18. 2005.

Nomenclatural References

• person : Graham J. Charles Based on occurrence of standard abbreviation 'G.J.Charles' in the authors string.
• person : Hans Till (1920-2012) Based on occurrence of standard abbreviation 'H.Till' in the authors string.
• person : Helmut Koop Based on occurrence of standard abbreviation 'Koop' in the authors string.
• database : The Plant List version 1.0, record: kew-2835627
• database : The Plant List version 1.1, record: kew-2835627