Noun: black-eyed Susan
- 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
- Tropical African climbing plant having yellow flowers with a dark purple centre
- black-eyed Susan vine, Thunbergia alata
- Annual weedy herb with ephemeral yellow purple-eyed flowers
- flower-of-an-hour, flowers-of-an-hour, bladder ketmia, Hibiscus trionum
Derived forms: black-eyed Susans
Type of: coneflower, hibiscus, vine
Part of: genus Rudbeckia, genus Thunbergia, Rudbeckia, Thunbergia
Encyclopedia: Black-eyed Susan