Notocactus meonacanthus Prestlé in Internoto 7(2): 37. 1986
Notocactus meonacanthus in Internoto 7(2): 37. 1986
is basionym for Parodia meonacantha in Cactaceae Consensus Init. 6: 11. 1998
is basionym for Ritterocactus meonacanthus in Sukkulenty 2(2): 22. 1999