Photo of buffalo bur flower and leaves.

    Buffalo Bur (Kansas Thistle)

    Solanum rostratum
    Poisonous Icon

    Poisonous

    Photo of common water hemlock or spotted cowbane flowers

    Common Water Hemlock

    Cicuta maculata
    Poisonous Icon

    Poisonous

    Photo of hedge parsley flower clusters

    Hedge Parsley

    Torilis arvensis
    Photo of mullein basal leaves

    Mullein

    Verbascum thapsus
    Photo of a Queen Anne's lace flower cluster, seen from the top
    Photo of water milfoil plants along the shore of a pond

    Water Milfoils

    Myriophyllum spp.
    Photo of white avens flower and upper stem leaves.