Cyperus rotundus L. - Nutgrass
Family - Cyperaceae
Stems:
Base of plant showing stolons and tubers.
Leaves:
Leaf sheath.
Ligule.
Inflorescence:
Flowers:
Flowering - May - November.
Habitat - Disturbed areas, cultivated areas, waste ground.
Origin - Native to Eurasia.
Other information - This species can be found scattered throughout Alabama. The plant is a common pest weed in cultivated areas. It can be identified by its tuber-bearing stolons, shiny green leaves, and purple spikelet scales. The stolons are often quite deep making the plant nearly impossible to eradicate once established.
The genus name Cyperus is from the Greek "cyper(us)" meaning "a rush or sedge."
The species epithet rotundus derives from the Latin "rotund" meaning "round, spherical" referring to the tubers of the stolons.
Alabama Distribution:
Photographs taken at Auburn University, AL., 5-17-06.