Photo of buffalo bur flower and leaves.

    Buffalo Bur (Kansas Thistle)

    Solanum rostratum
    Poisonous Icon

    Poisonous

    Photo of Carolina larkspur plants with flowers

    Carolina Larkspur (Prairie Larkspur)

    Delphinium carolinianum
    Poisonous Icon

    Poisonous

    Photo of common water hemlock or spotted cowbane flowers

    Common Water Hemlock

    Cicuta maculata
    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

    Photo of star of Bethlehem cluster of plants with flowers

    Star of Bethlehem

    Ornithogalum umbellatum
    Poisonous Icon

    Poisonous

    Photo of wild comfrey showing flower cluster

    Wild Comfrey

    Cynoglossum virginianum
    Poisonous Icon

    Poisonous