Photo of American feverfew flower cluster.

    American Feverfew

    Parthenium integrifolium
    Photo of common water hemlock or spotted cowbane flowers

    Common Water Hemlock

    Cicuta maculata
    Poisonous Icon

    Poisonous

    Photo of false garlic flowers

    False Garlic

    Nothoscordum bivalve
    Photo of flowering spurge flowers

    Flowering Spurge

    Euphorbia corollata
    Poisonous Icon

    Poisonous

    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae