Echinocactus steinmannii Solms in Bot. Zeitung (Berlin) 2. Abt. 65(Abt. 1): 133, fig. 4, 10. 1907
Echinocactus steinmannii in Bot. Zeitung (Berlin) 2. Abt. 65(Abt. 1): 133, fig. 4, 10. 1907
is basionym for Mediolobivia steinmannii in Sukkulentenkunde 1: 19. 1947
is basionym for Lobivia steinmannii, Kaktus-ABC: 243. 1936 ["1935"]
is basionym for Rebutia steinmannii, Cactaceae 3: 47. 1922
is basionym for Aylostera steinmannii, Cactaceae 3: 1528. 1959
Lectotype (designated by Hjertson, M. 2005: 231): [icon] Illustration of a flowering plant in the protologue in Bot. Zeitung (Berlin) 2. Abt. 65(Abt. 1): 133, pl. 2, fig. 4, 10. 1907