Illustration of Osage orange flowers and fruit.

    Osage Orange

    Maclura pomifera
    Illustration of poison ivy leaves, flowers, fruits.

    Poison Ivy

    Toxicodendron radicans
    Poisonous Icon

    Poisonous

    Illustration of tree-of-heaven leaves, flowers, fruit

    Tree-of-Heaven

    Ailanthus altissima
    invasive icon

    Invasive