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Alligatorweed (Alternanthera philoxeroides)

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Alligatorweed

(Alternanthera philoxeroides)

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Pennsylvania

iMapInvasives

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    Return to Gallery of Invaders

    Algae

    1/1
    Black Mat Alga
    (Lyngbya wollei [Plectonema wollei])

    1/1
    Codium
    (Codium fragile ssp. tomentosoides)

    1/1
    Didymo
    (Didymosphenia geminata)

    1/1
    Golden Alga
    (Prymnesium parvum)

    1/1
    Red Alga
    (Gracilaria vermiculophylla)

    1/1
    Starry Stonewort
    (Nitellopsis obtusa)
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    Request to have a new species added to our Gallery of Invaders.

    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