Cyperus subsquarrosus (Smallflower Halfchaff Sedge) is a species of annual herb in the family sedges. They have a self-supporting growth form. They are listed as endangered by COSEWIC. They are native to Canada, Puerto Rico, The Contiguous United States, and Eastern North America. They have simple, broad leaves. Individuals can grow to 0.15 m.
EOL has data for 18 attributes, including: