Polygonum fluviatile Buch.-Ham. 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.