Griseocereus pruinosus (Otto ex Pfeiff.) Guiggi in Cactology 3: 8. 2012 Griseocereus pruinosus (Otto ex Pfeiff.) Guiggi in Cactology 3: 8. 2012is new combination for Echinocactus pruinosus Otto ex Pfeiff., Enum. Diagn. Cact.: 54. 1837Taxon for this nameGriseocereus pruinosus (Otto ex Pfeiff.) Guiggi