Polygonum islandicum Meisn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Polygonum species Polygonum boreale Name Homonyms Polygonum islandicum (L.) Hook.fil. Polygonum islandicum Meisn. ex Small Polygonum islandicum Meisn.