Meaning of EUPATORIUM RUGOSUM

WordNet Dictionary
	Definition:		[n]  American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus Eupatorium
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	Synonyms:		Ageratina altissima, white sanicle, white snakeroot
	See Also:		Ageratina, genus Ageratina, herb, herbaceous plant