The Cyperaceaeare a family of angiosperm plants from the Poalesorder. It includes around 120 genera with approximately 5,600 species distributed all over the world with greatest concentration in the tropical regions of Africa and South America.
The family includes perennial or annual herbaceous plants. The stem is three-ridged thick, rarely cylindrical, with nodes in the base. The leaves are at the base, alternate, with closed stigma. The flowers are regular, bisexual or unisexual, gathered in a complex class, sorghum, umbel or head. The fruit is three-walled nut and in female flowers it is in a purse.