Synonyms
Ebnerella wilcoxii (Toumey ex K.Schum.) Buxb.
Mammillaria wilcoxii Toumey ex K.Schum.
Neomammillaria wilcoxii (Toumey ex K.Schum.) Britton & Rose
Mammillaria wrightii var. wilcoxii (Toumey ex K.Schum.) W.T.Marshall
Mammillaria wrightii subsp. wilcoxii (Toumey ex K.Schum.) D.R.Hunt
Chilita wilcoxii (Toumey ex K.Schum.) Orcutt