Scientific Name - Cyperus strigosus L.
Family - Cyperacea
Perennial from short rhizomes. Many large leaves at top of bare triangular stem under the seedhead. Narrow greenish-yellow spikelets massed on short to long stalks in congested to open seedheads. Reproduces by seed. Found in ditches, marshes and other moist to wet areas. Occurs from Maine, Minnesota, South Dakota, south into Florida, west to Nebraska, Kansas, Oklahoma, and Texas. Also found in Oregon, California, Washington and Quebec. Introduced into Italy.