Oxyria reniformis subsp. elatior Regel Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Oxyria species Oxyria digyna Name Homonyms Oxyria reniformis var. elatior Regel Oxyria reniformis subsp. elatior Regel