Smartweed (Polygonum hydropiperoides)

Leaves are oblong and smooth on the edges. Stems are distinctly jointed. Leaves are alternately arranged on the stem. The lower portion of the stem is rooted at the joints. Flowers are small and tightly clustered and are white or pink in color. Weed may be emersed in shallow water or completely submersed with only flowers visible above surface in deep water.

E=Excellent, G=Good, F=Fair