Photo of Chinese yam showing leaves and bulbils

    Chinese Yam

    Dioscorea oppositifolia (sometimes called D. batatas)
    invasive icon

    Invasive

    Photo of Japanese knotweed

    Japanese Knotweed

    Fallopia japonica
    invasive icon

    Invasive

    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of water primrose plant showing typical roots, leaves, stems, and a flower

    Water Primrose

    Ludwigia peploides
    Photo of yellow passionflower flowers.

    Yellow Passion Flower

    Passiflora lutea