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noun
Genus of tall erect or branched American annual or perennial herbs with showy flowers: sunflowers.
is a specific kind of: asterid dicot genus.
has as a member: helianthus, sunflower.
is a member of: aster family, Asteraceae, Compositae, family Asteraceae, family Compositae.
Find more on genus helianthus elsewhere: etymology - rhymes - Wikipedia.
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