Sulcorebutia steinbachii var. hoffmannii Fritz, Gertel & J.de Vries in Cactus & Co. 8(3): 188. 2004 Sulcorebutia steinbachii var. hoffmannii Fritz, Gertel & J.de Vries in Cactus & Co. 8(3): 188. 2004Taxon for this nameSulcorebutia steinbachii var. hoffmannii Fritz, Gertel & J.de Vries