Alnus glutinosa var. incisa (Willd.) Regel Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Alnus species Alnus glutinosa Name Homonyms Alnus glutinosa var. incisa Willd. Alnus glutinosa f. incisa Willd. Alnus glutinosa f. incisa (Willd.) H.J.P.Winkl. Alnus glutinosa var. incisa (Willd.) Regel Alnus glutinosa f. incisa (Willd.) Koehne Alnus glutinosa subsp. incisa (Willd.) Regel