Acanthocalycium oreopogon (Speg.) Backeb., Kaktus-ABC: 225. 1936 ["1935"] Acanthocalycium oreopogon (Speg.) Backeb., Kaktus-ABC: 225. 1936 ["1935"]is new combination for Lobivia oreopepon Speg. in Anales Soc. Ci. Argent. 99: 125. 1925Taxon for this nameAcanthocalycium oreopogon (Speg.) Backeb.