Sulcorebutia verticillacantha F.Ritter in Natl. Cact. Succ. J. 17(1): 13. 1962
Sulcorebutia verticillacantha in Natl. Cact. Succ. J. 17(1): 13. 1962
is basionym for Rebutia steinbachii subsp. verticillacantha in Cactaceae Consensus Init. 3: 6. 1997
is basionym for Sulcorebutia steinbachii subsp. verticillacantha in Cactus & Co. 8(3): 189. 2004
is basionym for Sulcorebutia steinbachii var. verticillacantha in Cactus & Co. 8(3): 189. 2004
is basionym for Weingartia verticillacantha in Kakteen Orch. Rundschau 2: 70. 1977
is basionym for Weingartia steinbachii subsp. verticillacantha in Gymnocalycium 21: 781. 2008