Clethra alnifolia var. michauxii Zabel Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ericales family Clethraceae genus Clethra species Clethra alnifolia Name Homonyms Clethra alnifolia var. michauxii Zabel Clethra alnifolia var. michauxii (Courtois) G.Nicholson Clethra alnifolia f. michauxii (Court) Zabel, 1903