= Anhalonium lewinii Henn.; Gartenflora 410-11, fig. 92 (1888), et Kew Bull. 77 (1889)
= Anhalonium williamsii (Lem. ex Salm-Dyck) C.F.Först.; Handb. Cacteenk., ed. 2 [Rümpler] 1: 233 (1885)
= Ariocarpus williamsii (Lem. ex Salm-Dyck) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 368 (1895)
= Echinocactus lewinii (Henn.) K.Schum.; Monatsschr. Kakteenk. 5: 11 (1895)
= Echinocactus williamsianus Lem.; Herb. Gén. Amat., Sér. 2, 3(misc.): 43 (1843), nom. rej. prop.
= Echinocactus williamsii Lem. ex Salm-Dyck; Allg. Gartenzeitung [Otto & Dietrich] 13: 385 (1845)
= Echinocactus williamsii var. anhaloninicus K.Schum.; Bot. Jahrb. Syst. 24: 567 (1898)
= Echinocactus williamsii var. luteus Rouhier; Trav. Lab. Matière Méd. École Supér. Pharm. Paris 17: 62 (1927)
= Echinocactus williamsii var. pellotinicus K.Schum.; Bot. Jahrb. Syst. 24: 567 (1898)
= Lophophora echinata Croizat; Desert Pl. Life 16: 43 (1944)
= Lophophora echinata var. lutea (Rouhier) Croizat; Desert Pl. Life 16: 44 (1944)
= Lophophora jourdaniana Haberm.; Kaktusy (Brno) 11(1): 3 (1975)
= Lophophora lewinii (Henn.) Rusby; Bull. Pharm. (Detroit) 8: 306 (1894)
= Lophophora lewinii C.H.Thomps.; Rep. (Annual) Missouri Bot. Gard. 9: 133 (1898)
= Lophophora lutea (Rouhier) Backeb.; Cactaceae [Backeberg] 5: 2901 (1961)
= Lophophora lutea var. texana (Fric ex Kreuz.) Backeb.; Cactaceae [Backeberg] 5: 2903 (1961)
= Lophophora pentagona (Croizat) V.Gapon; Kaktus-Klub 2004(2): 49 (2004)
= Lophophora pluricostata (Croizat) V.Gapon; Kaktus-Klub 2004(2): 49 (2004)
= Lophophora williamsii subsp. grymi Halda, Kupcák & Sladk.; Acta Mus. Richnov., Sect. Nat. 7(1): 36 (2000)
= Lophophora williamsii var. cristata Houghton; J. Cact. Succ. Soc. Amer. 2: 490 (1931)
= Lophophora williamsii var. decipiens Croizat; Desert Pl. Life 16: 44 (1944)
= Lophophora williamsii var. echinata (Croizat) Bravo; Cact. Suc. Mex. 12: 12 (1967)
= Lophophora williamsii var. heptagona Y.Itô; Cactaceae [Itô] 467 (1981) (without type)
= Lophophora williamsii var. lewinii (Henn.) J.M.Coult.; Contr. U.S. Natl. Herb. 3: 131 (1894)
= Lophophora williamsii var. lutea (Rouhier) Soulaire; Cact. Mèd. 121 (1948)
= Lophophora williamsii var. pentagona Croizat; Desert Pl. Life 16: 44 (1944)
= Lophophora williamsii var. pluricostata Croizat; Desert Pl. Life 16: 8 (1944)
= Lophophora williamsii var. texana Fric ex Kreuz.; Verzeichnis Amer. Sukk. Rev. Syst. Kakteen 9 (1935)
= Mammillaria lewinii (Henn.) H.Karst.; Deut. Fl. [Karsten], ed. 2, 2: 457 (1895)
= Mammillaria williamsii (Lem. ex Salm-Dyck) J.M.Coult.; Contr. U.S. Natl. Herb. 2: 129 (1891)
= Peyotl xochimilcensis F.Hern.; Hist. Pl. Nov. Hisp. 3: 70 (1790), contrary to Art. 42.1 ICBN (2000)
= Peyotl zacatensis F.Hern.; Hist. Pl. Nov. Hisp. 3: 70 (1790), contrary to Art. 42.1 ICBN (2000)