Aaron Volkening: Purple coneflower (Echinacea purpurea), Mitchell Park, Wisconsin
Aaron Volkening: Purple coneflower (Echinacea purpurea), Lions Den Gorge, Wisconsin
Aaron Volkening: Purple coneflower (Echinacea purpurea), Lakeshore State Park
Aaron Volkening: Purple coneflower (Echinacea purpurea), Lakeshore State Park
Aaron Volkening: Greendale_GrangeAve_2010_07_06
Aaron Volkening: Purple coneflower in Greendale bioswale