Cereus knightii J.Parm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Lepismium species Lepismium cruciforme Name Homonyms Cereus knightii J.Parm. ex Pfeiff. Cereus knightii J.Parm.