Echinopsis formosa subsp. korethroides (Werderm.) M.Lowry in Cactaceae Syst. Init. 14: 13. 2002
Echinopsis formosa subsp. korethroides in Cactaceae Syst. Init. 14: 13. 2002
is new combination for Echinopsis korethroides in Backeberg, Neue Kakteen: 84. 1931