Cyperus rotundus L. - Nutgrass
Family - Cyperaceae
Base of plant showing stolons and tubers.
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.
Photographs taken at Auburn University, AL., 5-17-06.