horseweed

noun horse·weed \ ˈhȯrs-ˌwēd \

Definition of horseweed

1 :a common annual American composite herb (Conyza canadensis synonym Erigeron canadensis) with an erect usually hairy stem and small discoid heads of yellow disk flowers
2 :a coarse annual North American ragweed (Ambrosia trifida)

Recent Examples of horseweed from the Web

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First Known Use of horseweed

1790


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