Acanthocalycium formosum (Pfeiff.) Backeb., Kaktus-ABC: 224. 1936 ["1935"]
Acanthocalycium formosum, Kaktus-ABC: 224. 1936 ["1935"]
is new combination for Echinocactus formosus, Enum. Diagn. Cact.: 50. 1837
Acanthocalycium formosum, Kaktus-ABC: 224. 1936 ["1935"]
Taxon for this name