bitterweed


bit·ter·weed

noun \ˈbi-tər-ˌwēd\

Definition of BITTERWEED

: any of several American plants containing a bitter substance: as a : either of two ragweeds: (1) : a low-growing common ragweed (Ambrosia artemissiifolia) (2) : horseweed b : an annual yellow-flowered sneezeweed (Helenium amarum syn. H. tenuifolium) c : an erect annual composite herb (Hymenoxys odorata) of the southwestern United States that has yellow flowers and is poisonous to livestock

First Known Use of BITTERWEED

1819

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