Duckweed leaves are thin with veins plainly visible. They have minute teeth that are visible along the entire margin of the leaf. Duckweed grows in early spring into summer. This plant loves stagnant water with a high nutrient level. it can cover a pond quite quickly.
Watermeal
This smallest of flowering plants, granular in size, is usually abundant when present and displays no roots. These are often mistaken for as seeds. Extremely difficult to control.
Algae Filamentous algae has a thread like appearance. Often referred to as pond scum or moss, algae forms surface mats. Growth begins at the bottom and rises to the surface as a bubble filled mass. It may often form fur-like growths on logs and rocks at the bottom. Plank tonic algae is viable as a greenish tinge and is suspended in the upper few feet of water. It is commonly referred to as "pea soup" and may actually thicken the water during severe blooms.
Eurasian Watermilfoil Eurasian watermilfoil is an exotic species. Its leaves are feather-like that sometimes produce reddish flowers that extend above the water. The stems are red to brown in color. It can dominate a pond very quick;y by fragmentation. Pieces of the plant grow roots to develop a new plant. Plants reach lengths of 10' of more. There are many native milfoil plants which do not have as many feather-like leaves and are much less aggressive.
