Hydrangea arborescens Torrey & A.Gray Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Cornales family Hydrangeaceae genus Hydrangea species Hydrangea arborescens Name Homonyms Hydrangea arborescens L. Hydrangea arborescens Torrey & A.Gray