Definitions for xanthium
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Princeton's WordNet
Xanthium, genus Xanthium(noun)
coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles
Webster Dictionary
Xanthium(noun)
a genus of composite plants in which the scales of the involucre are united so as to form a kind of bur; cocklebur; clotbur
U.S. National Library of Medicine
Xanthium
A plant genus of the family ASTERACEAE. The name "prickly burweed" is sometimes used but causes confusion with AMSINCKIA.
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