tithonia

noun

ti·​tho·​nia tə-ˈthō-nyə 

tī-,

-nē-ə

: 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

Word History

Etymology

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

First Known Use

1940, in the meaning defined above