×Trichoechinopsis imperialis (Hummel) Backeb., Cactaceae 2: 1283. 1959 ×Trichoechinopsis imperialis (Hummel) Backeb., Cactaceae 2: 1283. 1959Taxon for this name×Trichoechinopsis imperialis (Hummel) Backeb., Cactaceae 2: 1283. 1959
