Polygonum fluviatile Hook.f. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria barbata Name Homonyms Polygonum fluviatile Hook.f. Polygonum fluviatile Buch.-Ham. ex Endl. Polygonum fluviatile Buch.-Ham.