WordWeb Online

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

Derived forms: black-eyed Susans

Type of: coneflower, hibiscus, vine

Part of: genus Rudbeckia, genus Thunbergia, Rudbeckia, Thunbergia

Encyclopedia: Black-eyed Susan