Elodea canadensis subsp. gigantea L.H.Bailey Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Hydrocharitaceae genus Elodea species Elodea densa Name Homonyms Elodea canadensis var. gigantea L.H.Bailey Elodea canadensis subsp. gigantea L.H.Bailey