Early Detection Species

Click on any photo below to learn more about the negative impacts caused by each of these invasive species.

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Waterwheel
(Aldrovanda vesiculosa)
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Alligatorweed
(Alternanthera philoxeroides)
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Asian Longhorned Beetle
(Anoplophora glabripennis)
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Big Water Crayfish
(Cambarus robustus)
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Japanese Sedge
(Carex kobomugi)
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Diffuse Knapweed
(Centaurea diffusa)
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Blotched Snakehead
(Channa maculata)
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Bullseye Snakehead
(Channa marulius)
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Giant Snakehead
(Channa micropeltes)
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Marsh Thistle
(Cirsium palustre)
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Red Shiner
(Cyprinella lutrensis)
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Water Hyacinth
(Eichhornia crassipes)
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Chinese Mitten Crab
(Eriocheir sinensis)
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Reed Meadowgrass
(Glyceria maxima)
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Eurasian Ruffe
(Gymnocepphalus cernuus)
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Bloody Red Shrimp
(Hemimysis anomala)
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Silver Carp
(Hypophthalmichthys molitrix)
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Bighead Carp
(Hypophthalmichthys nobilis)
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Blue Catfish
(Ictalurus furcatus)
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Policeman's Helmet
(Impatiens glandulifera)
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Golden Mussel
(Limnoperna fortunei)
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Oriental Weatherfish
(Misgurnus anguillicaudatus)
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Black Carp
(Mylopharyngodon piceus)
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Nutria
(Myocastor coypus)
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Wavyleaf Basketgrass
(Oplismenus hirtellus ssp. undulatifolius)
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Water Lettuce
(Pistia stratiotes)
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Giant Salvinia
(Salvinia molesta)

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