buttonweed definition

  • noun:
    • any one of a number of flowers for the genera Spermacoce and Diodia, of the madder household.
    • title of a few flowers of genera Spermacoce and Diodia, associated with Madder household.
    • A name fond of a number of rubiaceous flowers of the genera Spermacoce, Diodia, and Borreria.
    • The knapweed, Centaurea nigra.

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  • Sentence for "buttonweed"
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