Appearance
"Schoenoplectus pungens" is a long-lived perennial herb up to 1.5 m tall. The foliage is dark green, rough and dense. The small flowers are grouped in dense spikelets, with of 1–7 spikelets on each stem. The seeds are brown.It is closely related to "S. americanus," and many "S. pungens" specimens have long been misidentified as "S. americanus."
Habitat
Threesquare is found in open, sun-lit marshes and along the shores of lakes and ponds, in water up to 1 m deep. It is resistant to fire.References:
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