any composite plant of the genus Eupatorium, especially E. perfoliatum, of North America, having white flowers in a flat-topped cluster.
Also called thoroughwort.

1810–20, Americanism; bone1 + set (v.), so named (by hyperbole) because supposed to have healing properties Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
boneset (ˈbəʊnˌsɛt)
agueweed, feverwort, Also called: thoroughwort any of various North American plants of the genus Eupatorium, esp E. perfoliatum, which has flat clusters of small white flowers: family Asteraceae (composites)

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Encyclopedia Britannica


any of about 40 species of herbaceous plants constituting the genus Eupatorium of the composite family Asteraceae, native primarily to tropical America. The North American plant known as boneset is E. perfoliatum, also known as agueweed and Indian sage. It is common in wet places and is a coarse, rough, hairy perennial about 0.6 to 1.8 metres (2 to 6 feet) high. Its lance-shaped, toothed, and wrinkled leaves are joined together at their bases around the stem. In August the plants bear small, tubular, white flowers in numerous heads that form a flat and branched cluster

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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