Rebutia polymorpha Cárdenas in Kakteen And. Sukk. 16(6): 115–116. 1965
Rebutia polymorpha in Kakteen And. Sukk. 16(6): 115–116. 1965
is basionym for Sulcorebutia steinbachii subvar. polymorpha in Inform.-brief Freundeskreis Echinopseen 22: 26. 1996
is basionym for Weingartia polymorpha in Kakteen Orch. Rundschau 2: 70. 1977
is basionym for Sulcorebutia steinbachii var. polymorpha, Sulcorebutia & Weingartia: Coll. Guide: 80. 1985
is basionym for Sulcorebutia polymorpha, Kakteenlex.: 416. 1966