Coryphantha robertii A.Berger Kakteen: 280. 1929.

Nomenclatural References

• person : Alwin Berger (1871-1931) Based on occurrence of standard abbreviation 'A.Berger' in the authors string.
• database : The Plant List version 1.0, record: kew-2739748
• database : The Plant List version 1.1, record: kew-2739748