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IPM1007, Practical Weed Science for the Field Scout: Corn and Soybean

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Practical Weed Science for the Field Scout: Corn and Soybean

Nutsedge, yellow (Cyperus esculentus)

Plants resembling grasses

Yellow nutsedge
Yellow nutsedge

A perennial from rhizomes and tubers that may reach 2-1/2 feet in height. The stems are distinctly three-sided and triangular in cross section and the leaves are yellow to green in color with a distinct ridge. Leaves have a distinctly shiny appearance. Leaves are 5 to 8 mm wide and have a distinct ridge along the midvein. Leaves are produced in groups of three from the base of the plant. Leaves are without hairs, and no auricles or ligules are present. The leaves of yellow nutsedge taper gradually to a sharp point. Yellow to brown spikelets occur at the ends of the solitary flowering stems.

Yellow nutsedge
 

 

Wild thing
 

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