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  1. Commodity:         

    Weeds (9)
    Aquatic and Wetlands (2)
    Understory and Rangeland Plants (2)

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Field (5)
Laboratory (5)

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    Ohio State Weed Lab Archive (6)
    Leslie J. Mehrhoff (2)
    John Cardina (1)
    Theodore Webster (1)

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Plants - Forbs/Herbs

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Subject Scientific Name Images
Japanese knotweed Fallopia japonica 4
red sorrel Rumex acetosella 3
swamp smartweed Persicaria hydropiperoides 1
water knotweed Polygonum amphibium 2

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