IUCN threat status:  Not evaluated  Brief Summary  Read full
entry Cyperaceae is a plant family commonly known as the sedges,
which is comprised of approximately 5500 species. Stems are
unjointed and typically triangular in cross section, with solid
pith throughout. Leaves are three-ranked or tristichous. Fruits
are in the form of an achene or nut.  Species most commonly
occur in wetlands, although some are found in upland locations,
and in some cases are obtrusive to crops; Benzothiadiazoles are
typically the herbicides of choice to control unwanted
Cyperaceae.    Supplier: C. Michael Hogan