cocklebur

cocklebur

[kok-uhl-bur]
noun
1.
any composite plant of the genus Xanthium, comprising coarse weeds with spiny burs.
2.
the burdock, Arctium lappa.

Origin:
1795–1805; cockle2 + bur1

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World English Dictionary
cocklebur (ˈkɒkəlˌbɜː)
 
n
1.  any coarse weed of the genus Xanthium, having spiny burs: family Asteraceae (composites)
2.  the bur of any of these plants

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
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cocklebur

weedy annual plant of the genus Xanthium of the family Asteraceae, distributed throughout much of Europe and parts of North America. Some authorities consider that the genus contains about 15 species, others say from 2 to 4

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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