Nutsedge

Purple Nutsedge

Scientific Name – Cyperus rotundus L.
Family – Cyperaceae
Rapidly-spreading, perennial with three-ranked basal leaves. Leaves flat or slightly corrugated, usually shorter than flowering stem, abruptly tapering at tip. Seedhead purple to reddish-brown, formed at end of triangular stem. Tubers, oblong, covered with hairs, and found in chains connected by brown, wiry rhizomes. Tubers bitter to taste. Reproduces primarily by tubers. Found north to Kentucky and West Virginia, west to central Texas and in southern California. Also occurs in the West Indies, Mexico, Central and South America, Europe, Africa, Asia and Hawaii.

Yellow Nutsedge (Yellow Nutgrass)

Scientific Name – Cyperus esculentus L.
Family – Cyperaceae
Rapidly spreading, perennial with three-ranks basal leaves. Leaves flat or slightly corrugated, usually as long or longer than flowering stem, with long attenuated tip. Seedhead yellowish-brown or straw colored, formed at end of triangular stem. Tubers round, lacking hairs and formed at ends of whitish rhizomes. Does not form chains of tubers. Tubers slightly sweet to taste. Reproduces primarily by tubers. Found throughout the United States. Also found in Canada, the West Indies, mexico, Central and South America, Europe, Africa, Asia, and Hawaii.

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