Most commonly observed introduced amphibians documented using iNaturalist by US state
15 states reported American Bullfrog, Lithobates catesbeianus, as the most commonly observed introduced amphibian
11 states reported Cuban Tree Frog, Osteopilus septentrionalis, as the most commonly observed introduced amphibian
5 states reported Green Treefrog, Hyla cinerea, as the most commonly observed introduced amphibian
5 states reported Squirrel Treefrog, Hyla squirella, as the most commonly observed introduced amphibian
4 states reported Greenhouse Frog, Eleutherodactylus planirostris, as the most commonly observed introduced amphibian
2 states reported Northern Dusky Salamander, Desmognathus fuscus, as the most commonly observed introduced amphibian
1 state reported Cane Toad, Rhinella marina, as the most commonly observed introduced amphibian
1 state reported Gulf Coast Toad, Incilius nebulifer, as the most commonly observed introduced amphibian
1 state reported Northern Gray-cheeked Salamander, Plethodon montanus, as the most commonly observed introduced amphibian
1 state reported Northern Pacific Tree Frog, Pseudacris regilla, as the most commonly observed introduced amphibian
1 state reported Rio Grande Chirping Frog, Eleutherodactylus campi, as the most commonly observed introduced amphibian
Top 10 most commonly observed amphibians in the US (reported on iNaturalist)
American Toad, Anaxyrus americanus - Native to the US (but may be considered introduced in some states)
American Bullfrog, Lithobates catesbeianus - Native to the US (but may be considered introduced in some states)
Green Frog, Lithobates clamitans - Native to the US (but may be considered introduced in some states)
Eastern Newt, Notophthalmus viridescens - Native to the US (but may be considered introduced in some states)
Eastern Red-backed, Salamander Plethodon cinereus - Native to the US (but may be considered introduced in some states)
Green Treefrog, Hyla cinerea - Native to the US (but may be considered introduced in some states)
Gulf Coast Toad, Incilius nebulifer - Native to the US (but may be considered introduced in some states)
Wood Frog, Lithobates sylvaticus - Native to the US (but may be considered introduced in some states)
Spring Peeper, Pseudacris crucifer - Native to the US (but may be considered introduced in some states
California Newt, Taricha torosa - Native to the US (but may be considered introduced in some states)
(last updated November 2023