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"Alnus glutinosa. A, a flowering twig; s, staminate catkins; p, pistillate catkins; B, a group of staminate flowers, enlarged; C, two pistillate flowers, enlarged." -Bergen, 1896

Alder Flowers

"Alnus glutinosa. A, a flowering twig; s, staminate catkins; p, pistillate catkins; B, a group of staminate…

Alnus is also known as the Adler Tree. The flower clusters on the alnus glutinosa tree are known as catkins which are large, long, and shaped like a cylinder.

Alnus Glutinosa Catkins and Fruit

Alnus is also known as the Adler Tree. The flower clusters on the alnus glutinosa tree are known as…

The common name of <i>Alnus glutinous</i> is black alder. The leaves are two to five inches long with five to seven pairs of veins. The tree grows up to seventy feet tall.

Black Alder

The common name of Alnus glutinous is black alder. The leaves are two to five inches long with five…