Melocactus bahiensis f. inconcinnus (Buining & Brederoo) N. P. Taylor
Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Melocactus bahiensis (Britton & Rose) Luetzelb.)
Melocactus inconcinnus var. brederooanus (Buining) F. Ritter
Homotypic synonym according to GBIF classification (Originally found in sources as doubtful taxon within Melocactus inconcinnus Buining & Brederoo)
Melocactus inconcinnus var. brederooianus (Buining) F. Ritter
Homotypic synonym according to GBIF classification (Originally found in sources as synonym of Melocactus bahiensis f. acispinosus (Buining & Brederoo) N.P.Taylor)