Emex Neck., 1790 Dataset GBIF Backbone Taxonomy Rank GENUS Published in Elem. Bot., ed. 2 (Necker) 2: 214. 1790 [Apr ? 1790] Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Emex Name Homonyms Emex Neck. ex Campderá Emex L. Emex Neck., 1790