Polygonum amphibium var. amurensis Korsh. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria amphibia Name Homonyms Polygonum amphibium var. amurensis Korsh. Polygonum amphibium subsp. amurensis (Korsh.) Soják