Echinopsis ferox subsp. potosina (Werderm.) M.Lowry in Cactaceae Syst. Init. 13: 17. 2002
Echinopsis ferox subsp. potosina in Cactaceae Syst. Init. 13: 17. 2002
is new combination for Echinopsis potosina in Notizbl. Bot. Gart. Berlin-Dahlem 11: 267. 1931