Populus alba subsp. canescens Aiton Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Populus species Populus canescens Name Homonyms Populus alba var. canescens Aiton Populus alba subsp. canescens (Aiton) Bonnier & Layens Populus alba subsp. canescens (Aiton) Syme