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Oregon Frogs and Toads: Pictures & ID Guide

Last checked November 3, 2026 against official sources.

On this page
  1. Which frogs and toads can hurt you
  2. All 13 frogs and toads
  3. When they are active
  4. If you are bitten or stung
  5. How to report
  6. About this list
  7. Sources

Oregon Department of Fish and Wildlife: Twelve native species of frogs and toads live in Oregon.

This page lists 13 species: all from Oregon Department of Fish and Wildlife's Oregon's Frogs and Toads and ODFW Wildlife Viewing: Frogs and Toads. 1 is nonnative. Oregon Department of Fish and Wildlife gives a total of 12; the 13 here are the frogs and toads official sources name one by one.

Which frogs and toads can hurt you

Official sources single out these frogs and toads in Oregon, in their own words:

  • Toads (and newts)

    Poisons in skin glands. “Some amphibians, such as toads and newts, have poisons in their skin glands. They might harm you or your pets, if pets eat them.” Oregon State University Extension Service

All 13 frogs and toads

From A to Z. Do not handle them.

American Bullfrog
Photo: Paul Danese · CC BY-SA 4.0 · Wikimedia Commons · resized

American Bullfrog

Lithobates catesbeianus

Not stated Invasive

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Size
Usually 6 to 8 inches long (NCWRC); can reach 8 inches or more and weigh over 2 pounds (CDFW). Missouri gives 3.5 to 6 inches snout to vent, occasionally to 8.75.
How to recognize it
  • No ridge (dorsolateral fold) down each side of the back
  • Large round eardrum: about twice the eye in males, about eye-sized in females
  • Fully webbed hind feet, longest toe extends past the webbing
237 records by month.

Full American Bullfrog guide

No confirmed photo of Cascades Frog

Cascades Frog

Rana cascadae

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: East and West Cascades Oregon Department of Fish and Wildlife
Coastal Tailed Frog
Photo: John G. Phillips · CC BY 4.0 · iNaturalist

Coastal Tailed Frog

Ascaphus truei

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Coast Range, Klamath Mountains and West Cascades Oregon Department of Fish and Wildlife
No confirmed photo of Columbia Spotted Frog

Columbia Spotted Frog

Rana luteiventris

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Eastern Oregon Oregon Department of Fish and Wildlife
Foothill Yellow-legged Frog
Photo: Alan Rockefeller · CC BY 4.0 · iNaturalist

Foothill Yellow-legged Frog

Rana boylii

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Western Oregon Oregon Department of Fish and Wildlife
Great Basin Spadefoot
Photo: RJ Baltierra · CC BY 4.0 · iNaturalist

Great Basin Spadefoot

Spea intermontana

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Eastern Oregon Oregon Department of Fish and Wildlife
Northern Leopard Frog
Photo: Colin Croft · CC BY 4.0 · iNaturalist

Northern Leopard Frog

Lithobates pipiens

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Limited locations in eastern Oregon Oregon Department of Fish and Wildlife
No confirmed photo of Northern Pacific Treefrog

Northern Pacific Treefrog

Pseudacris regilla

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Throughout Oregon Oregon Department of Fish and Wildlife
612 records by month.
Northern Red-legged Frog
Photo: Mandy Hackney · CC BY 4.0 · iNaturalist

Northern Red-legged Frog

Rana aurora

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: East and West Cascade ecoregions Oregon Department of Fish and Wildlife
No confirmed photo of Oregon Spotted Frog

Oregon Spotted Frog

Rana pretiosa

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
No confirmed photo of Rocky Mountain Tailed Frog

Rocky Mountain Tailed Frog

Ascaphus montanus

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Eastern Oregon Oregon Department of Fish and Wildlife
No confirmed photo of Western Toad

Western Toad

Anaxyrus boreas

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Throughout Oregon Oregon Department of Fish and Wildlife
No confirmed photo of Woodhouse’s Toad

Woodhouse’s Toad

Anaxyrus woodhousii

Not stated

Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Where in Oregon
Lives: Limited locations in eastern Oregon Oregon Department of Fish and Wildlife

When frogs and toads are active in Oregon

Records of frogs and toads in Oregon peak in May to September. They show when people record frogs and toads, not how many there are (about month bars).

1,269 records of frogs and toads in Oregon by month (GBIF, CC0 and CC BY records).

If you are bitten or stung

Call 911 or Poison Help at 1-800-222-1222 right away. Poison Help connects you to your local poison center, any time of day.

How to report

Invasive species sightings: Oregon Invasives Hotline, oregoninvasiveshotline.org or 1-866-INVADER; wildlife conflicts: local ODFW office (ODFW main phone 503-947-6000) Oregon Invasives Hotline

About this list

The species list comes from Oregon's Frogs and Toads (ODFW Oregon Conservation Strategy flyer) and ODFW Wildlife Viewing: Frogs and Toads (Oregon Department of Fish and Wildlife, undated PDF (uploaded 2026-02 per file path); as of retrieval 2026-11-03).

Venom labels come only from official sources and link to them; "Not stated" never means harmless. How labels work.

"Nonnative" and "Invasive" follow the wording of the source list. See invasive species in Oregon.

Want a paper copy? Print the Oregon frogs and toads ID chart.

Sources

  1. Wildlife Viewing. Oregon Department of Fish and Wildlife. undated page; checked November 3, 2026.
  2. Oregon's Frogs and Toads (Oregon Conservation Strategy flyer). Oregon Department of Fish and Wildlife. undated page; checked November 3, 2026.
    Quoted passages (1)
    “Twelve native species of frogs and toads live in Oregon.”
  3. The Wildlife Garden: Attract Reptiles and Amphibians to Your Yard (EC 1542). Oregon State University Extension Service. EC 1542, reprinted July 2002; checked November 3, 2026.
    Quoted passages (1)
    “Some amphibians, such as toads and newts, have poisons in their skin glands. They might harm you or your pets, if pets eat them.”
  4. Oregon Invasives Hotline. Oregon Invasives Hotline (Oregon Invasive Species Council; "Maintained by Oregon State University"). undated page; checked November 3, 2026.
    Quoted passages (1)
    “Report potential invasive species you've found to the Online Hotline. Your submission will provide vital early detection information to the experts working to stop the next invasion before it starts!”
  5. GBIF.org occurrence records, human observations licensed CC0 1.0 or CC BY 4.0 only, accessed November 3, 2026. The datasets behind these counts are listed on our Sources page.