duckweed Water milfoil coontail Floating leaf pondweed elodea chara Curly leaf pond weed Sago pondweed najas Small pondweed Planktonic algae Filamentous algae Pond lilies iris spatterdock cattails bulrush pikeralweed White pond lily Indian grass Saw grass Prickly pear catus alfalfa Blood root Loose strife milkweed Big bluestem Black eyed susy Jack in the pulpit elderberry Jacobs ladder Little bluestem May apple sneezeweed Showy goldenrod spicebush Switch grass Wild ginger Wool grass Winter wheat oats