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Beggar Ticks
Bidens spp.
Photo by Dr. John Meade, weed scientist emeritus
Rutgers Cooperative Extension
The awns of this plant have barbs which attach the seed to socks and trousers and irritate the skin. Found in wet areas. One species is known as Spanish Needle because the seed is long and thin.
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Rutgers New Jersey Agricultural Experiment Station
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New Jersey Agricultural Experiment Station · 88 Lipman Drive · New Brunswick, NJ 08901-8525
