Synonyms
Alnus glutinosa 'Birkiana', Alnus glutinosa 'Fastigiata', Alnus glutinosa f. fastigiata, Alnus glutinosa f. pyramidalis birkiana
Alnus glutinosa 'Birkiana', Alnus glutinosa 'Fastigiata', Alnus glutinosa f. fastigiata, Alnus glutinosa f. pyramidalis birkiana
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