Spiraea opulifolia var. parvifolia A.Gray Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Physocarpus species Physocarpus monogynus Name Homonyms Spiraea opulifolia var. parvifolia A.Gray ex Porter & J.M.Coult. Spiraea opulifolia var. parvifolia A.Gray