Melocactus onychacanthus subsp. albescens (F.Ritter) Guiggi in Cactology 3: 8. 2012
Melocactus onychacanthus subsp. albescens in Cactology 3: 8. 2012
is new combination for Melocactus onychacanthus var. albescens, Kakteen Südamerika 4: 1308. 1981
Melocactus onychacanthus subsp. albescens in Cactology 3: 8. 2012
Taxon for this name