Polygonum ×intermedium Hy, 1896 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria wilmsii Name Homonyms Polygonum intermedium Kit. ex Rochel Polygonum intermedium Nutt. Polygonum intermedium Robert ex Loisel. Polygonum intermedium Nutt. ex S.Watson Polygonum ×intermedium Hy, 1896 Polygonum intermedium Ehrh. Polygonum intermedium Robert Polygonum intermedium Kit.