Pacific treefrogs (Pseudacris regilla) are common throughout North America, west of the Rocky Mountains. Their geographic range extends from southern British Columbia, Canada, south through Washington, Oregon, and California, to Baja California, Mexico. Their eastern-most portion of their geographic range extends into Nevada, Idaho, and Montana. Pacific treefrogs also have been reported in deserts of southern California, where they are thought to have been introduced.
Biogeographic Regions: nearctic (Introduced , Native )
- Elliott, L., C. Gerhardt, C. Davidson. 2009. The Frogs and Toads of North America. Ithica, New York: NatureSound Studio.
- Ripplinger, J., R. Wagner. 2004. Phylogeography of northern populations of the Pacific treefrog, Pseudacris regilla. Northwestern Naturalist, 85/3: 118-125.
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