Polygonum pusillum Krock. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria minor Name Homonyms Polygonum pusillum Krock. Polygonum pusillum Lam. Polygonum pusillum Kitt. Polygonum pusillum Guss. ex Nyman Polygonum pusillum Guss. Polygonum pusillum Kit., 1864