Duckweed (Lemna minor)

Leaves are the size of a pencil eraser. May be observed individually or in clusters upon close observation. Small root hairs may be seen hanging down from the underside of the leaf. No stem is distinguishable. Heavy growth may blanket the surface to a depth of several inches. Duckweed is not as interconnected as Filamentous Algae. Do not confuse with Algae.

E=Excellent, G=Good, F=Fair

*in water less than 3 feet deep.