cottonweed

noun
cot·ton·weed | \ ˈkä-tᵊn-ˌwēd \

Definition of cottonweed 

: any of various weedy plants (such as cudweed) with whitish pubescence or cottony seeds

First Known Use of cottonweed

1562, in the meaning defined above

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The first known use of cottonweed was in 1562

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