Rumex caldeirarum H.C.Watson Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Rumex species Rumex aquaticus Name Homonyms Rumex ×caldeirarum Rech.fil. Rumex caldeirarum H.C.Watson ex Meisn. Rumex caldeirarum H.C.Watson