Floating-Leaf Pondweed (Potamogeton natuns)

Leaves are both floating and submersed. Submersed leaves long and narrow. Floating leaves oblong and slightly heart-shaped at the base. Parallel leaf veins are evident. Stems are occasionally branched. Leaves are alternately arranged on the stem. Solid, tightly packed spike of nutlets at tip of weed rises above water surface when mature.

E=Excellent, G=Good, F=Fair