Magnolia grandiflora var. rotundifolia Sweet Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Magnoliales family Magnoliaceae genus Magnolia species Magnolia grandiflora Name Homonyms Magnolia grandiflora var. rotundifolia Sweet ex Loudon Magnolia grandiflora var. rotundifolia Sweet