= 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
Family: Grossulariaceae
    Itea virginica - sweetspire
    Ribes acerifolium - mapleleaf currant
    Ribes aureum - golden currant
    Ribes bracteosum - stink currant
    Ribes cereum - wax currant
    Ribes lacustre - prickly currant
    Ribes montigenum - mountain gooseberry
    Ribes roezlii - Sierra gooseberry
    Ribes rotundifolium - Appalachian gooseberry
    Ribes sanguineum - red-flowering currant
    Ribes viburnifolium - evergreen currant
    Ribes viscosissimum - sticky currant