= nonnative, planted and a wildland component, commonly "escapes" cultivation
= nonnative, planted, generally not considered a wildland component or invasive
= a North American native, may naturalize outside its native range
Genus: Ilex
    Ilex amelanchier - sarvis holly
    Ilex cassine - dahoon
    Ilex coriacea - large gallberry
    Ilex cornuta - Chinese holly
    Ilex crenata - Japanese holly
    Ilex decidua - deciduous holly
    Ilex glabra - inkberry
    Ilex montana - mountain holly
    Ilex myrtifolia - myrtle holly
    Ilex opaca - American holly
    Ilex purpurea - Oriental holly
    Ilex verticillata - winterberry holly
    Ilex vomitoria - yaupon
    Ilex xattenuata - Foster's holly