Photo of black mustard flower cluster

    Black Mustard

    Brassica nigra
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    Edible

    Photo of buffalo bur flower and leaves.

    Buffalo Bur (Kansas Thistle)

    Solanum rostratum
    Poisonous Icon

    Poisonous

    Photo of celandine poppy plant and flowers

    Celandine Poppy (Wood Poppy)

    Stylophorum diphyllum
    Photo of common cinquefoil plants with flowers

    Common Cinquefoil

    Potentilla simplex
    Photo of common evening primrose, closeup of flowers.

    Common Evening Primrose

    Oenothera biennis
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    Edible

    Photo of common ground cherry flower

    Common Ground Cherry

    Physalis longifolia
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    Edible

    Photo of common St. John’s-wort flower with spent flowers and fruits

    Common St. John’s-Wort

    Hypericum perforatum
    Photo of eastern prickly pear plant with flowers

    Eastern Prickly Pear

    Opuntia humifusa (formerly O. compressa)
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    Edible

    Photo of hispid buttercup plant with flower

    Hispid Buttercup

    Ranunculus hispidus
    Photo of horse nettle flowers and leaves

    Horse Nettle

    Solanum carolinense
    Poisonous Icon

    Poisonous

    Photo of lance-leaved loosestrife plant with flowers

    Lance-Leaved Loosestrife

    Lysimachia lanceolata
    Photo of purple meadow parsnip foliage and flowers

    Meadow Parsnip

    Thaspium trifoliatum
    Photo of moth mullein flowers

    Moth Mullein

    Verbascum blattaria
    Photo of mullein basal leaves

    Mullein

    Verbascum thapsus
    Photo of southern wild senna showing a flower cluster and a few leaflets.

    Southern Wild Senna

    Senna marilandica (formerly Cassia marilandica)
    Photo of yarrow or common milfoil flower cluster

    Yarrow (Common Milfoil)

    Achillea millefolium
    Photo of yellow passionflower flowers.

    Yellow Passion Flower

    Passiflora lutea
    Photo of yellow rocket flower clusters

    Yellow Rocket

    Barbarea vulgaris
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    Edible

    Photo of yellow wood sorrel plant showing flowers and leaves.

    Yellow Wood Sorrel

    Oxalis stricta
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    Edible