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  1. Mile-a-minute weed (Polygonum perfoliatum)

    https://pested.osu.edu/node/406

    trailing vine growing up to 24' in length, in the buckwheat family. Reddish stem are armed with ... contain black or reddish-black seed. Root: Shallow, fibrous root system. The problem is...grows rapidly, ...

  2. Giant Hogweed (Heracleum mantegazzianum)

    https://pested.osu.edu/node/399

    growing 15'-20' in height in large clusters. Sap may cause servere skin irritation. Life cycle: ... can grow up to 2.2' in diameter. Fruit: Large elliptic dry fruit, seeds orange and 0.5" in ...

  3. Poison hemlock (Conium maculatum)

    https://pested.osu.edu/node/409

    Poison hemlock (Conium maculatum) Description: A herb in the carrot family that grows ... carrot and parsley, and have a parsnip-like odor when crushed. Life cycle: Biennial Habitat: Grows in dry ...

  4. Hairy white top or ballcress (Lepidium appelianum)

    https://pested.osu.edu/node/421

    mustard plant in the brassicaceae family that grows up to two feet tall. Plants appear grey-green, soft, ...

  5. Field bindweed (Convolvulus arvensis)

    https://pested.osu.edu/node/414

    or trailing viny stems and white-pink flowers that can grow up to 6.5' in length. Life Cycle: ...

  6. Heart-podded hoary cress (Lepidium draba sub. Draba)

    https://pested.osu.edu/node/422

    Heart-podded hoary cress (Lepidium draba sub. Draba) Description: Plants grow up to around ...

  7. Wild parsnip (Pastinaca sativa)

    https://pested.osu.edu/node/413

    growing 2'-5' in height. Produces a rosette of large, upright leaves in the first year and ...

  8. Johnsongrass (Sorgum halepense)

    https://pested.osu.edu/node/402

    (Poaceae) that grows in dense clumps or nearly solid stands. Johnsongrass form thickm aggressive rhyzomes ...

  9. Palmer amaranth (Amaranthys palmeri)

    https://pested.osu.edu/node/408

    peitoles that are longer than the leaves and grow symmetrically around the stem.  Life cycle: Summer annual ...

  10. Grapevines, uncultivated & in groups > 100 (Vitus spp.)

    https://pested.osu.edu/node/400

    if they are growing in groups of 100 or more and are not maintained (pruned, sprayed, or cultivated) ...

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