Tacinga atropurpurea var. zehntnerioides Backeb., Descr. Cact. Nov. 1: 10. 1957 ["1956"] Tacinga atropurpurea var. zehntnerioides Backeb., Descr. Cact. Nov. 1: 10. 1957 ["1956"]Taxon for this nameTacinga atropurpurea var. zehntnerioides Backeb.