Photo of blue vervain flower clusters in a prairie

    Blue Vervain

    Verbena hastata
    Photo of Chinese yam showing leaves and bulbils

    Chinese Yam

    Dioscorea oppositifolia (sometimes called D. batatas)
    invasive icon

    Invasive

    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