Mammillaria discolor Haw. subsp. discolor, Syn. Pl. Succ.: 177. 1812 sec. Guzmán & al. 2003
- =Mammillaria amoena Hopffer ex Salm-Dyck, Cact. hort. dyck., ed. 3: 99. 1850 syn. sec. Guzmán & al. 2003
- =Cactus discolor (Haw.) Kuntze, Rev. Gen. Pl. 1: 260. 1891 syn. sec. Guzmán & al. 2003
- =Neomammillaria amoena (Hopffer ex Salm-Dyck) Britton & Rose, Cactaceae (Britton & Rose) 4: 120. 1923 syn. sec. Guzmán & al. 2003
- =Neomammillaria discolor (Haw.) Britton & Rose, Cactaceae (Britton & Rose) 4: 132. 1923 syn. sec. Guzmán & al. 2003
- =Mammillaria discolor var. longispina Repp., Gatt. Mammillaria: 77. 1987 syn. sec. Guzmán & al. 2003
- =Mammillaria discolor var. multispina Repp., Gatt. Mammillaria: 77. 1987 syn. sec. Guzmán & al. 2003
- =Mammillaria discolor subsp. longispina (Repp.) Rogoz. & Plein in Mitteilungsbl. Arbeitskreises Mammillarienfr. 27: 84. 2003 syn. sec. Rogozinski & Plein 2003