Definition of helianthus

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  • helianthus is not a valid Scrabble US word!
  • helianthus is a valid Scrabble UK word with a point value of 16
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Definition of helianthus

  • any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays (noun)

    Synonyms

    1. sunflower

See definition of helianthus in Merriam Webster