Ageratina crassiramea

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Ageratina crassiramea is a flowering plant in the daisy family (Asteraceae). It grows from central and southern Mexico through Central America to Nicaragua. The species was first described in 1900 by Benjamin Lincoln Robinson as Eupatorium crassirameum and later placed in the genus Ageratina. Another name it has been known by is Pachythamnus crassirameus.