Echinopsis horstii (P.J.Braun) Anceschi & Magli in Cactusinhabitat S. Amer. 2011/2013: 38. 2013 Echinopsis horstii (P.J.Braun) Anceschi & Magli in Cactusinhabitat S. Amer. 2011/2013: 38. 2013is new combination for Cleistocactus horstii P.J.Braun in Kakteen And. Sukk. 33: 208. 1982Taxon for this nameEchinopsis horstii (P.J.Braun) Anceschi & Magli