Arequipa aurantiaca (Vaupel) Werderm. in Kakteenkunde 1939: 77. 1939
Arequipa aurantiaca in Kakteenkunde 1939: 77. 1939
is new combination for Echinocactus aurantiacus in Bot. Jahrb. Syst. 50(2-3, Beibl. 111): 23. 1913
Arequipa aurantiaca in Kakteenkunde 1939: 77. 1939