noun
(1) Any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays
Noun
- Any plant of the genus Helianthus, so called probably from the form and color of its floral head, having the form of a large disk surrounded by yellow ray flowers; the commonly cultivated sunflower is Helianthus annuus, a native of America.
- (colour) a bright yellow, like that of the flower petals.
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See also