Cleistocactus ritteri Backeb. ex Guiggi in Cactology 5 (Suppl. 7): 1. 2020 Cleistocactus ritteri Backeb. ex Guiggi in Cactology 5 (Suppl. 7): 1. 2020Taxon for this nameCleistocactus ritteri Backeb. ex Guiggi in Cactology 5 (Suppl. 7): 1. 2020
