Populus simonii var. rotundifolia X.C.Lu Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Populus species Populus simonii Name Homonyms Populus simonii var. rotundifolia X.C.Lu ex Z.Wang & S.L.Tung Populus simonii var. rotundifolia X.C.Lu