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another person to access the database?
Alligatorweed
(Alternanthera philoxeroides)
Found an invasive species? Register for a free login account, or submit a public report.
Virile Crayfish
Photo credit: STILL NEED!!!
(Orconectes virilis)
Range Information
The map below depicts both the native and invasive ranges of Virile crayfish in Pennsylvania, shown here by
HUC 8 watersheds. Data used to create this map was provided by staff from the Western Pennsylvania Conservancy.
Native Range
Invasive Range
