black-eyed susan

Noun

• the state flower of Maryland; of central and southeastern United States; having daisylike flowers with dark centers and yellow to orange rays

• annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America

• tropical African climbing plant having yellow flowers with a dark purple center

Related words

• Synonyms: 
  black-eyed Susan , Rudbeckia hirta , Rudbeckia serotina , flower-of-an-hour , flowers-of-an-hour , bladder ketmia , Hibiscus trionum , black-eyed Susan vine , Thunbergia alata