Echinopsis oreopogon (Speg.) Werderm. in Gartenflora 80: 302. 1931 Echinopsis oreopogon (Speg.) Werderm. in Gartenflora 80: 302. 1931is correct spelling for Echinopsis oreopepon Werderm.is new combination for Lobivia oreopepon Speg. in Anales Soc. Ci. Argent. 99: 125. 1925Taxon for this nameEchinopsis oreopogon (Speg.) Werderm.