Photo of buffalo bur flower and leaves.

    Buffalo Bur (Kansas Thistle)

    Solanum rostratum
    Poisonous Icon

    Poisonous

    Photo of eastern prickly pear plant with flowers

    Eastern Prickly Pear

    Opuntia humifusa (formerly O. compressa)
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    Edible

    Photo of a Queen Anne's lace flower cluster, seen from the top
    Photo of viper’s bugloss, closeup of flower

    Viper's Bugloss

    Echium vulgare