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Alligatorweed (Alternanthera philoxeroides)

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Alligatorweed

(Alternanthera philoxeroides)

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Pennsylvania

iMapInvasives

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    Kudzu
    Kudzu
    Pueraria montana var. lobata

    Photo credit: Matthew Erb/Tree Pittsburgh
    Mile-a-minute
    Mile-a-minute
    Polygonum perfoliatum

    Photo credit: Lindley Ashline/Flickr
    Goatsrue
    Goatsrue
    Galega officinalis

    Photo credit: Sarah Gregg/Flickr
    Tropica soda apple
    Tropica soda apple
    Solanum viarum

    Photo credit: © L'herbier en photos/Flickr
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    Pennsylvania & Federal Noxious Weeds

    A noxious weed is a plant species that has been designated by a country, state, or national agricultural authority as one that is injurious to agricultural and/or horticultural crops, natural habitats and/or ecosystems, and/or humans or livestock.

    Common: Species found in at least 1/3 of Pennsylvania counties. (This does not include cultivated species.)

    Uncommon: Species found in Pennsylvania, but not widespread (i.e., found in less than 1/3 of Pennsylvania counties.)

    Not present: Species not yet found in Pennsylvania.

    ​

    *Status column last updated in August 2016.

    The Pennsylvania iMapInvasives Program is a partnership of the Western Pennsylvania Conservancy, the Pennsylvania Natural Heritage Program, and NatureServe.

    Funding for Pennsylvania iMapInvasives is provided by the Great Lakes Restoration Initiative.

    NatureServe logo, iMapInvasives partner
    Pennsylvania Natural Heritage Program, iMapInvasives partner
    Great Lakes Restoration Initiative logo, iMapInvasives funding source