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blueweed

noun blue·weed \ ˈblü-ˌwēd \

Definition of blueweed

1 : viper's bugloss
2 : a small weedy sunflower (Helianthus ciliaris) of the southwestern U.S. with blue-green or gray-green foliage

First Known Use of blueweed

1818

in the meaning defined at sense 1

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