Xanthium spinosum

Xanthium spinosum is a species of flowering plant in the aster family known by many common names, including spiny cocklebur, prickly burweed and Bathurst burr. It is known worldwide as a noxious weed that grows in many types of disturbed habitat. Its original native range is not known but it may have come from South America, possibly from Chile. T...
Found on http://en.wikipedia.org/wiki/Xanthium_spinosum
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