Photo of common jimsonweed flower

    Common Jimsonweed

    Datura stramonium
    Poisonous Icon

    Poisonous

    Photo of flowering spurge flowers

    Flowering Spurge

    Euphorbia corollata
    Poisonous Icon

    Poisonous

    Photo of leafy spurge seed heads

    Leafy Spurge

    Euphorbia esula
    Poisonous Icon

    Poisonous

    invasive icon

    Invasive

    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

    Photo of a Queen Anne's lace flower cluster, seen from the top
    Photo of yarrow or common milfoil flower cluster

    Yarrow (Common Milfoil)

    Achillea millefolium