Neochilenia robusta var. vegasana (F.Ritter) Backeb., Cactaceae 6: 3783. 1962 Neochilenia robusta var. vegasana (F.Ritter) Backeb., Cactaceae 6: 3783. 1962is new combination for Pyrrhocactus robustus var. vegasanus F.Ritter in Succulenta (Netherlands) 1960: 65. 1960Taxon for this nameNeochilenia robusta var. vegasana (F.Ritter) Backeb.