Echinocactus wislizeni var. phoeniceus R.E.Kunze in Monatsschr. Kakteenk. 23: 8. 1913
Echinocactus wislizeni var. phoeniceus in Monatsschr. Kakteenk. 23: 8. 1913
is basionym for Ferocactus wislizeni var. phoeniceus, Cacti, ed. 2: 105. 1952
is basionym for Echinocactus wislizeni f. phoeniceus, Kakteen: 208. 1926
is basionym for Ferocactus phoeniceus in Cactography 6. 1926