Correctly identifying the vegetation in your pond will save you time and money. The most common vegetation problems are listed below. Vegetation is normally broken down in three categories.
Submerged: Milfoil, Chara, Hydrilla and Naiad are a few and are common forms of submerged vegetation.
Emergent: Cattails, Arrowhead and Reeds are most common.
Floating: Lily Pads, Primrose, American Pondweed, Duckweed, Watermeal and Watershields are common in many areas of the United States.
Algae has different characteristics. Algae can form at the bottom or float on top and will not have a true root system. Most other vegetation will have a root system. Exceptions would be Duckweed and Watermeal.