Turf Weeds was developed to provide weed management information and newsearch reports to turfgrass managers.  This site contains information on weed identification, chemical and cultural management of weeds, and current topics relevant to weed management in lawns and professional turf.  Turf Weeds was created  by Dr. Shawn Askew, Assistant Professor of Turfgrass Weed Science at Virginia Polytechnic Institute & State University.
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Plant Description:
Name:Common Cocklebur
Scientific Name:Xanthium strumarium
Family:Asteraceae
Type:Broadleaf
Lifecycle:Summer Annual
Habit:Erect, stout stems and spreading branches that are angled and often red-spotted.
Leaves:The leaves are alternate and can be up to 8" long and 6" across. They are cordate or ovate-cordate with bases that are well rounded or indented and tips that are broad and blunt. Leaves are covered with short stiff hairs that give the plant a rough feel.
Leaf Arrangement:Alternate
Characteristics:It bears heart shaped leaves and oblong, hairy burs with strong, beaked prickles.
Flower Seed Head:The male flowers are in inconspicuous heads clustered at the tips of branches; the female flowered heads are axillary, greenish in color with the 2 flowers in the head enclosed by the involucres.
Seed Fruit:Seeds are borne in a prickly burr that resembles Velcro and sticks to clothing and animal hair. The seeds are often covered with dark membranes. The young seedlings are poisonous and can be fatal to cattle and pigs.
Where Found:Habitats include cropland (especially corn fields), fallow fields, the floodplain zone of rivers and ponds, degraded meadows that are poorly drained, dried-up mudholes, stabilized areas of beaches and sand dunes, vacant lots, and waste areas. Disturbed, poorly drained areas are preferred.

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