Found in one sample

United States: West Brook (Middle Eocene)

See also Alnus, Alnus ferdinandicoburgii, Alnus firma, Alnus glutinosa, Alnus hirsuta, Alnus incana, Alnus nepalensis, Alnus oligocaenica, Alnus rhombifolia, Alnus rugosa, Alnus sp., Alnus sp. 1, Alnus sp. HER22