Parodia riojensis F.Ritter & Weskamp, Gattung Parodia: 474. 1987
Parodia riojensis, Gattung Parodia: 474. 1987
is basionym for Parodia catamarcensis var. riojensis, Cact. Argentine, ed. 2: 226. 1998 ["1997"]
is basionym for Parodia microsperma var. riojensis in Mitteilungsbl. Inter-Parodia-Kette 22: 13. 2004