catkins or alder cones, common alder (alnus glutinosa) in winter.

catkins alder cones common alnus glutinosa winter branch black european weather background bokeh soft focus selective season winter leafless boreal nordic hanging cones snowy frozen frosty wood dry environment tree botany catkins frost ice detail cold twig outdoors closeup plant branch cone cold brown black outdoor alnus glutinous park seeds alder wildlife natural glutinosa nature tree