Echinocactus prolifer Backeb. in Kakteen-Freund 1: 132. 1932
Echinocactus prolifer in Kakteen-Freund 1: 132. 1932
is basionym for Gymnocalycium calochlorum var. proliferum, Cactaceae 3: 1718. 1959
is basionym for Gymnocalycium proliferum, Kaktus-ABC: 294. 1936 ["1935"]