Rebutia steinbachii subsp. kruegerae (Cárdenas) D.R.Hunt in Cactaceae Consensus Init. 3: 6. 1997
Rebutia steinbachii subsp. kruegerae in Cactaceae Consensus Init. 3: 6. 1997
is new combination for Aylostera kruegerae in Cactus (Paris) 57: 260-261. 1957