Photo of blue vervain flower clusters in a prairie

    Blue Vervain

    Verbena hastata
    Photo of false dragonhead plant with flowers

    False Dragonhead (Obedient Plant)

    Physostegia virginiana
    Photo of a giant ragweed plant.

    Giant Ragweed

    Ambrosia trifida
    Photo of Ohio horsemint inflorescence

    Ohio Horsemint

    Blephilia ciliata
    fork and knife icon

    Edible