Gymnocalycium damsii (K.Schum.) Britton & Rose, Cactaceae 3: 163. 1922
Gymnocalycium damsii, Cactaceae 3: 163. 1922
is new combination for Echinocactus damsii, Gesamtbeschr. Kakt., Nachtr. 1: 119. 1903
Gymnocalycium damsii, Cactaceae 3: 163. 1922
Taxon for this name