Eutrochium maculatum (spotted joe-pyeweed) is a North American species of flowering plants in the sunflower family. It is widespread through much of the United States and Canada. It is the only species of the genus found west of the Great Plains. Spotted Joe-Pye weed thrives in marshes, rich fens and swamps. It also does well in man-made moist expanses such as ditches, seepage areas and wet fields. Above all else the plant flourishes in the non-shaded environments that are so abundant in wetlands.