tithonia

noun
ti·tho·nia | \ tə-ˈthō-nyə , tī- , -nē-ə \

Definition of tithonia 

: any of a genus (Tithonia) of tall composite herbs or shrubs of Mexico and Central America that have flower heads resembling sunflowers and that are sometimes grown as ornamentals

First Known Use of tithonia

1940, in the meaning defined above

History and Etymology for tithonia

New Latin, probably from Latin Tithonia, poetic name of Aurora

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The first known use of tithonia was in 1940

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