= Cactus lanatus Kunth; Nov. Gen. Sp. [H.B.K.] 6: 68 (1823)
= Cephalocereus dautwitzii (J.N.Haage) Voss; Vilm. Ill. Blumengärtn., ed. 3 [Sieber & Voss], 1: 373 (1894)
= Cephalocereus dautwitzii (Seitz) Voss; Vilm. Ill. Blumengärtn., ed. 3 [Sieber & Voss], 1: 373 (1894)
= Cereus dautwitzii (J.N.Haage) Orcutt; W. Amer. Sci. 13: 63 (1902)
= Cereus dautwitzii (J.N.Haage) Mottet; Dict. Prat. Hort. 1: 581 (1892-1893)
= Cereus lanatus (Kunth) DC.; Prodr. 3: 464 (1828)
= Cereus lanatus subsp. sericatus (Backeb.) Werderm.; Backeb., Neue Kakteen 71 (1931)
= Cereus sericatus Backeb.; Monatsschr. Deutsch. Kakteen-Ges. 3: 157 (1931)
= Cleistocactus lanatus (Kunth) F.A.C.Weber; Rol.-Goss. Cleistoc. 9 (1904)
= Espostoa dautwitzii (J.N.Haage) Borg; Cacti [Borg] 112 (1937)
= Espostoa lanata f. roseiflora (Madsen & Z.Aguirre) Guiggi; Cactology 5(Suppl. II): 5 (2016)
= Espostoa lanata subsp. roseiflora Madsen & Z.Aguirre; Nordic J. Bot. 23(1): 24 (2004)
= Espostoa lanata var. floridaensis F.Ritter; Kakteen Südamerika 4: 1442 (1981)
= Espostoa lanata var. sericata (Backeb.) Backeb.; Cactaceae [Backeberg] 4: 2529 (1960)
= Espostoa laticornua Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 35 (1957)
= Espostoa laticornua var. atroviolacea Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 35 (1956 publ. 1957)
= Espostoa laticornua var. rubens Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 35 (1956 publ. 1957)
= Espostoa procera Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 35 (1956 publ. 1957)
= Espostoa ritteri Buining; Succulenta (Netherlands) 1960: 25 (1960)
= Espostoa sericata (Werderm. & Backeb.) Backeb.; Cact. Succ. J. (Los Angeles) 3: 131 (1932), et Kaktus-ABC [Backeberg & Knuth] 340 (1935)
= Oreocereus lanatus (Kunth) Britton & Rose; Stand. Cycl. Hort. 2404 (1916)
= Pilocereus dautwitzii J.N.Haage; Gard. Chron. 1873: 7 (1873)
= Pilocereus lanatus (Kunth) F.A.C.Weber; Dict. Hort. [Bois] 965 (1898)
= Pilocereus lanatus var. haagei Jostmann; Monatsschr. Kakteenk. 21: 25 (1911)