Photo of buffalo bur flower and leaves.

    Buffalo Bur (Kansas Thistle)

    Solanum rostratum
    Poisonous Icon

    Poisonous

    Photo of spiked lobelia flower stalk.

    Spiked Lobelia

    Lobelia spicata
    Photo of white sweet clover flower cluster showing stalk and flowers.

    White and Yellow Sweet Clovers

    Melilotus albus and M. officinale
    invasive icon

    Invasive

    Photo of wood betony plants with flowers

    Wood Betony (Common Lousewort)

    Pedicularis canadensis