Rumex acetosa var. longifolius Metzg. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Rumex species Rumex rugosus Name Homonyms Rumex acetosa var. longifolius Zapal. Rumex acetosa var. longifolius Metzg. Rumex acetosa var. longifolius Metzg. ex Alef.