Photo of a bull thistle flowerhead.

    Bull Thistle

    Cirsium vulgare
    fork and knife icon

    Edible

    Photo of common jimsonweed flower

    Common Jimsonweed

    Datura stramonium
    Poisonous Icon

    Poisonous

    Photo of glade coneflower flowerhead showing yellow pollen

    Glade Coneflower

    Echinacea simulata
    Photo of horse nettle flowers and leaves

    Horse Nettle

    Solanum carolinense
    Poisonous Icon

    Poisonous

    Photo of pale purple coneflower showing white pollen among disk florets

    Pale Purple Coneflower

    Echinacea pallida
    Purple Coneflower

    Purple Coneflower

    Echinacea purpurea
    Photo of cut-leaved teasel showing flowerhead and joined, cuplike leaves.

    Teasels

    Dipsacus fullonum and D. laciniatus
    invasive icon

    Invasive

    Photo of viper’s bugloss, closeup of flower

    Viper's Bugloss

    Echium vulgare