Photo of a bull thistle flowerhead.

    Bull Thistle

    Cirsium vulgare
    fork and knife icon

    Edible

    Photo of horse nettle flowers and leaves

    Horse Nettle

    Solanum carolinense
    Poisonous Icon

    Poisonous

    Photo of sensitive brier flowers

    Sensitive Briar

    Mimosa quadrivalvis (also Schrankia nuttallii)
    Photo of tall thistle plants with flowers

    Tall Thistle

    Cirsium altissimum
    fork and knife icon

    Edible