Polygonum australe Thiéb.-Bern. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Persicaria species Persicaria hydropiperoides Name Homonyms Polygonum australe Thiéb.-Bern. ex Pers. Polygonum australe Spreng. Polygonum australe (G.Forst.) A.Rich. Polygonum australe Thiéb.-Bern.