Polygonella meissneriana Shuttlew. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Polygonella species Polygonella americana Name Homonyms Polygonella meissneriana Shuttlew. ex Meisn. Polygonella meissneriana Shuttlew.