April - November
0.7 - 1.5
Grows to 1.5 m tall and has weak culms toped with a spreading inflorescence with destinctive spikelets on wavy branches. Leaf sheaths and blades are finely marked with parallel lines and have saw-like teeth on the edges.
Seed utilized by ducks; occasionally eaten by muskrats.
Marshes, ditches, low woods, swamps, wet meadows, muddy soil, streams, ponds, lakes.