Habitat: Marshes, ponds, shallow edges of lakes, slowly moving streams, and ditches. Often found on wet soil when water levels drop.
Description: Watermeal is a light green plant that is free-floating. Measuring between 0.2 and 1.5 millimeters, they are the smallest seed bearing plants in the world. Because Watermeal grows in dense colonies in quiet waters, they are often associated or mistaken for Duckweeds. The main difference is watermeal does not have roots. However, like the Duckweed, it is an aggressive invader and can be very damaging if it overtakes a pond surface. When this happens, oxygen depletion occurs and causes fish kills. By blocking out the sunlight to the water below, it also eliminates the growth of submerged plants.