Columbia Spotted Frog

October 23, 2015
Heidi Rockney and Karen Wu
Columbia Spotted Frog

Columbia Spotted Frog
Photo: Netta Smith

Name: Columbia Spotted Frog (Rana luteiventris)
Order:Frogs (Anura)
Family: True Frogs (Ranidae)

What they look like

  • Up to 10cm
  • Bumpy light brown or olive green skin with dark spots which are lighter in color in the center
  • Underside is reddish including the back legs
  • Have folds of skin down the sides of their back
  • Very similar in appearance to Rana pretiosa

Where they live

  • View a map of where they live
  • In Washington State are found in the Cascades and in Eastern Washington
  • Prefer slow moving, quiet water with lots of plants including wetlands and water sources in damp forests

Breeding

  • Breeding season is February to July
  • Prefers slow, shallow warm water in permanent water sources to lay eggs
  • Eggs eventually will get covered by algae and turn a greenish color
  • Eggs are laid in groups with other females, sometimes 25 or more masses can be found together

Cool Biology Facts

  • Originally thought to hibernate all winter in mud under water, but there has been evidence that they actually move around under the ice in winter
  • Will migrate to find new water sources in dry seasons when their water sources dry up
  • Sometimes they like to bask in the sun!

Threats

  • Current population is decreasing. Main threats include introduced species, such as fish and bullfrogs and habitat loss. 
  • View their status on the IUCN Red List of Threatened Species
Distribution Map

Map of Columbia Spotted Frog distribution in Washington state. Learn more on the NatureMapping Foundation website.

Explore more of the Amphibians & Reptiles of Washington or check out All About Amphibians.

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