Ilex × attenuata, the topal holly, is the result of a cross between Ilex cassine (dahoon) and Ilex opaca (American holly). It is a naturally occurring hybrid found in the southeastern United States where the ranges of the parents overlap, but hybrid cultivars have also been created.[1] The best known cultivars are 'Fosteri', Foster holly, which does not require males to set fruit, and 'Savannah', with very showy red fruit.[2] [3]