Melocactus azureus subsp. ferreophilus (Buining & Brederoo) N.P.Taylor in Bradleya 9: 40. 1991
Melocactus azureus subsp. ferreophilus in Bradleya 9: 40. 1991
is new combination for Melocactus ferreophilus in Krainz, Kakteen 52: CVId. 1973
Melocactus azureus subsp. ferreophilus in Bradleya 9: 40. 1991
Taxon for this name