Alnus glutinosa (L.) Gaertner
      
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2 43006 Alnus glutinosa (L.) Gaertner [80 140742 Betula alnus var. glutinosa L.] Betulaceae
J. Sturm, E.H.L. Krause, K.G. Lutz, Deutschl. Fl., ed. 2, vol. 4 : t. 35 (1905)