Sparganium emersum subsp. fluitans (Gren. & Godr.) Arcang. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Typhaceae genus Sparganium species Sparganium emersum Name Homonyms Sparganium emersum subsp. fluitans (Gren. & Godr.) Arcang.