Rebutia steinbachii var. violaciflora Backeb. in Cactus (Paris) 80-81: 6. 1964
Rebutia steinbachii var. violaciflora in Cactus (Paris) 80-81: 6. 1964
is basionym for Sulcorebutia steinbachii f. violaciflora in Atlas Kaktusu 5: 57. 1991
is basionym for Sulcorebutia steinbachii var. violaciflora in Cactus (Paris) 80-81: 5–6. 1964