Seticereus ferrugineus Backeb. in Cactaceae (Berlin) 1937(2): 14. 1937
Seticereus ferrugineus in Cactaceae (Berlin) 1937(2): 14. 1937
is basionym for Seticereus oehmianus var. ferrugineus in Kakteenkunde 1943: 31. 1943
is basionym for Seticereus icosagonus var. ferruginea, Kakteenlex.: 406. 1966