Also known as longleaf pondweed, American pondweed is a rooted, perennial herb that has both submerged and floating leaves.
The leaves of American pondweed are attached to a stem that can grow up to 6 feet long. Floating, oval-shaped leaves are 4 to 7 inches long and 1 to 2 inches wide, while the less abundant, submerged leaves are smaller and blade-like. Flowers emerge from the water in densely packed, club-like spikes. Seed heads are brownish red and extend above the water on slender stalks.
Lakes, ponds, ditches, streams and shallow water; can also grow in rapid and deep waters
Found throughout the United States
American pondweed is often a food source for fish, waterfowl and turtles. Because it is considered a nuisance species, it is eradicated by humans with herbicide. It is also susceptible to aphid infestation.
Reproduction occurs through producing new shoots, fragmentation and seeds.