Scientific Name - Cyperus surinamensis Rottb.
Family - Cyperacea
Perennial from short rhizomes. A few long leaves at top of the triangular stem under the seedhead. Stem with downward curving prickles, rough to the touch when rubbed upwards. Seedhead with numerous congested clusters of spikes on long stalks. Reproduces by seed. Found in ditches, marshes and other moist to wet sites. Occurs from South Carolina south into Florida and west to Texas. Also found in Central America, Bolivia and Argentina.