Betula serrulata Aiton Betula oblongata Aiton Betula alnus serrulata Alnus serrulata vulgaris Alnus serrulata subelliptica Alnus serrulata obtusifolia Alnus serrulata noveboracensis Alnus serrulata nanella Alnus serrulata mollescens Alnus serrulata macrophylla Alnus serrulata emarginata Alnus rugosa serrulata Alnus rugosa obtusifolia Alnus oblongata (Aiton) Willd. Alnus noveboracensis Britton Alnus macrophylla Desf. ex Steud. Alnus latifolia Desf. Alnus incana serrulata Alnus glutinosa serrulata Alnus glutinosa oblongata Alnus glutinosa autumnalis Alnus autumnalis Hartig ex Garcke Alnus americana K.Koch
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