Ulmus alba Raf. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Raf. (1817). In: Fl. Ludov. 115. Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Ulmaceae genus Ulmus species Ulmus americana Name Homonyms Ulmus alba Raf. Ulmus alba Kit. ex Willd. Ulmus alba Kit.