n.

[NL., fr. Gr. xa`nqion a plant used for dyeing the hair yellow, said to be the Xanthium strumarium, from xanqo`s yellow.]
(Bot.) A genus of composite plants in which the scales of the involucre are united so as to form a kind of bur; cocklebur; clotbur.

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IN BRIEF: n. - Coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles.