Sulcorebutia steinbachii var. violaciflora Backeb. in Cactus (Paris) 80-81: 5–6. 1964
Sulcorebutia steinbachii var. violaciflora in Cactus (Paris) 80-81: 5–6. 1964
is new combination for Rebutia steinbachii var. violaciflora in Cactus (Paris) 80-81: 6. 1964