Synonyms
Gymnocalycium schickendantzii subsp. periferalium Neuhuber
Gymnocalycium pungens Fleisch.
Gymnocalycium schickendantzii var. pectinatum Neuhuber
Gymnocalycium schickendantzii subsp. bergeri Neuhuber
Echinocactus stuckertii Speg.
Gymnocalycium michoga Y.Itô
Gymnocalycium stuckertii (Speg.) Britton & Rose