Polygonum caespitosum var. laxiflorum Meisn. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria posumbu Name Homonyms Polygonum caespitosum var. laxiflorum Meisn.