Synonyms
Mammillaria retusa Pfeiff.
Coryphantha retusa var. melleospina (Bravo) Bravo
Melocactus mammillariiformis Salm-Dyck
Melocactus cephalophora Salm-Dyck
Cactus retusus (Pfeiff.) Kuntze
Coryphantha retusa var. pallidispina Backeb.
Coryphantha melleospina Bravo