Persicaria emersa (Michx.) Cockerell Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria amphibia Name Homonyms Persicaria emersa (Michx.) Cockerell ex Daniels Persicaria emersa (Michx.) Small Persicaria emersa (Michx.) Cockerell