Copiapoa cinerea subsp. gigantea (Backeb.) Slaba in Kaktusy (Brno) 33 (Spec.): 3. 1997 Copiapoa cinerea subsp. gigantea (Backeb.) Slaba in Kaktusy (Brno) 33 (Spec.): 3. 1997is new combination for Copiapoa gigantea Backeb. in Jahrb. Deutsch. Kakteen-Ges. 1: 104. 1936Taxon for this nameCopiapoa cinerea subsp. gigantea (Backeb.) Slaba