Polygonum attenuatum Petrov Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Bistorta species Bistorta attenuata Name Homonyms Polygonum attenuatum Petrov ex Kom. Polygonum attenuatum R.Br. Polygonum attenuatum Petrov