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Alligatorweed (Alternanthera philoxeroides)

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Alligatorweed

(Alternanthera philoxeroides)

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Pennsylvania

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    Gallery of Invaders

    Login to Pennsylvania iMapInvasives to view distribution data for many

    of the species listed in the Gallery of Invaders.

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    Aquatic & Facultative Plants

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    Invertebrates

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    Fish

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    Reptiles & Amphibians

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    Mammals & Birds

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    Pathogens

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    Algae
    Pennsylvania's Field Guide to Aquatic Invasive Species

    Species profiles provided in the Gallery of Invaders originate from Pennsylvania's Field Guide to Aquatic Invasive Species (Second Edition 2015) and the Mid-Atlantic Field Guide to Aquatic Invasive Species, publications by Pennsylvania Sea Grant and

    The Pennsylvania State University.

    Pennsylvania's Field Guide to Aquatic Invasive Species

    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