Polygonum ×ambiguum Personnat, 1867 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria ambigua Name Homonyms Polygonum ambiguum Meisn. Polygonum ×ambiguum Personnat, 1867 Polygonum ambiguum Meisn.