Mammillaria gracilis Pfeiff. in Allg. Gartenzeitung 6: 275. 1838
Mammillaria gracilis in Allg. Gartenzeitung 6: 275. 1838
is basionym for Mammillaria vetula subsp. gracilis, Mammillaria Postscripts 6: 6. 1997
is basionym for Cactus gracilis, Revis. Gen. Pl. 1: 260. 1891
is basionym for Krainzia gracilis in Novosti Sistematiki Vysshikh Rastenii 33: 169. 2001
is basionym for Escobariopsis gracilis in Sukkulenty 3: 40. 2000