Rebutia senilis subsp. chrysacantha (Backeb.) Donald in Ashingtonia 2: 50. 1975 Rebutia senilis subsp. chrysacantha (Backeb.) Donald in Ashingtonia 2: 50. 1975is new combination for Rebutia chrysacantha Backeb., Kaktus-ABC: 416. 1936 ["1935"]Taxon for this nameRebutia senilis subsp. chrysacantha (Backeb.) Donald