Cyperus esculentus is a native perennial, with upright, triangular stems up to 2 ft. (0.61 m) tall and short, scaly rhizomes.
Foliage
Leaves are light green, very glossy and grass-like. They are three ranked and taper to a sharp point.
Flowers
The inflorescence is a terminal clustered spikelet. Flowers are yellowish to brownish in color.
Fruit
The fruits are achenes that seldom mature. Fruits are brown, sessile, and ellipsoid.
Ecological Threat
Cyperus esculentus is widespread and varies morphologically. Four varieties are recognized. It can be aggressive, with the tubers persisting even when the plant is pulled up by the roots. Cyperus esculentus can form dense stands especially in disturbed wetlands.