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thor·ough·wort(thûr′ō-wûrt′, -wôrt′, thûr′ə-, thŭr′-)
(Plants) another word for boneset
any composite plant of the genus Eupatorium, esp. E. perfoliatum, of North America, having white flowers in a flat-topped cluster. Also called thoroughwort.
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|Noun||1.||thoroughwort - perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine|
Eupatorium, genus Eupatorium - large genus of chiefly tropical herbs having heads of white or purplish flowers