Children (6 direct children, 6 direct and indirect children):
Gymnocalycium damsii var. boosii
Gymnocalycium damsii var. centrispinum
Gymnocalycium damsii var. rotundulum
Gymnocalycium damsii var. torulosum
Gymnocalycium damsii subsp. evae
Gymnocalycium damsii var. tucavocense