Opuntia retrorsa Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 571. 1905
Opuntia retrorsa in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 571. 1905
is basionym for Platyopuntia retrorsa, Kakteen Südamerika 2: 496. 1980
is basionym for Opuntia anacantha var. retrorsa in Candollea 53: 475. 1998