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Webster 1913 Edition

Ragweed

Rag′weedˊ

(răg′wēdˊ)

,

Noun.

(Bot.)

A common American composite weed (

Ambrosia artemisiaefolia

) with finely divided leaves; hogweed.

Great ragweed

,

a coarse American herb (

Ambrosia trifida

), with rough three-lobed opposite leaves.