Armatocereus cartwrightianus var. longispinus Backeb., Descr. Cact. Nov. 1: 14. 1957 ["1956"] Armatocereus cartwrightianus var. longispinus Backeb., Descr. Cact. Nov. 1: 14. 1957 ["1956"]Taxon for this nameArmatocereus cartwrightianus var. longispinus Backeb.
