Bistorta vulgaris var. ovata Nakai Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Bistorta species Bistorta officinalis Name Homonyms Bistorta vulgaris var. ovata Nakai ex H.Hara Bistorta vulgaris var. ovata Nakai