Photo of American feverfew flower cluster.

    American Feverfew

    Parthenium integrifolium
    Photo of black mustard flower cluster

    Black Mustard

    Brassica nigra
    fork and knife icon

    Edible

    Photo of purple meadow parsnip foliage and flowers

    Meadow Parsnip

    Thaspium trifoliatum
    Photo of Missouri evening primrose flower with river in distance

    Missouri Evening Primrose

    Oenothera macrocarpa (formerly O. missouriensis)
    Photo of western wallflower

    Western Wallflower

    Erysimum capitatum
    Photo of wood betony plants with flowers

    Wood Betony (Common Lousewort)

    Pedicularis canadensis
    Photo of woollen breeches flower cluster

    Woollen Breeches (Great Waterleaf)

    Hydrophyllum appendiculatum