Mammillaria elongata subsp. echinaria (DC.) D.R. Hunt, Mammillaria Postscripts 6: 7. 1997 sec. Hunt 2016
- ≡Mammillaria echinaria DC. in Mém. Mus. Hist. Nat. 17: 110. 1828 syn. sec. Guzmán & al. 2003
- =Cactus echinarius (DC.) Kuntze, Revis. Gen. Pl. 1: 260. 1891 syn. sec. Guzmán & al. 2003
- =Neomammillaria echinaria (DC.) Britton & Rose, Cactaceae (Britton & Rose) 4: 136. 1923 syn. sec. Guzmán & al. 2003
- =Chilita echinaria (DC.) Orcutt, Cactography 2. 1926 syn. sec. Guzmán & al. 2003
- =Leptocladodia echinaria (DC.) Buxb. in Oesterr. Bot. Z. 101: 601. 1954 syn. sec. Guzmán & al. 2003
- =Mammillaria elongata var. echinaria (DC.) Backeb., Cactaceae (Backeberg) 5: 3257. 1961 syn. sec. Guzmán & al. 2003