Schoenoplectus pungens (Common Threesquare) is a species of perennial grass in the family sedges. It has a self-supporting growth form. It is associated with freshwater habitat. Common Threesquare is native to Saint-Pierre et Miquelon, the contiguous United States, Canada, Alaska, North America, eastern north america, and western north america. It has simple, broad leaves. It is a photoautotroph. Individuals can grow to 0.66 m.
EOL has data for 19 attributes, including: