Echinocactus calochlorus Boed. in Monatsschr. Deutsch. Kakteen-Ges. 4: 260. 1932
Echinocactus calochlorus in Monatsschr. Deutsch. Kakteen-Ges. 4: 260. 1932
is basionym for Gymnocalycium calochlorum, Cacti, ed. 2: 90. 1952
is basionym for Gymnocalycium proliferum var. calochlorum, Kaktus-ABC: 295. 1936 ["1935"]
is basionym for Gymnocalycium quehlianum var. calochlorum in Gymnocalycium 20: 729. 2007