black-eyed susan meaning and definition

BLACK-EYED SUSAN noun

Definition of black-eyed Susan (noun)

1. tropical African climbing plant having yellow flowers with a dark purple center
   • synonyms: black-eyed Susan vine, Thunbergia alata
2. annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America
   • synonyms: bladder ketmia, flower-of-an-hour, flowers-of-an-hour, Hibiscus trionum
3. the state flower of Maryland; of central and southeastern United States; having daisylike flowers with dark centers and yellow to orange rays
   • synonyms: Rudbeckia hirta, Rudbeckia serotina