California red-legged frog

E60845

The California red-legged frog is a threatened amphibian native to California and the largest native frog in the western United States, known for its distinctive reddish hind legs and association with coastal and foothill habitats.

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Observed surface forms (1)

Surface form Occurrences
California red legged frog 1

Statements (69)

Predicate Object
instanceOf amphibian
frog
threatened species
activityPattern mostly nocturnal
associatedWith dense emergent vegetation
overhanging vegetation
averageAdultLength 4 to 5 inches
breedingHabitat permanent or semi-permanent water bodies
breedingSeason late winter to early spring
class Amphibia
conservationStatus Threatened
conservationStatusSystem U.S. Endangered Species Act
culturalSignificance featured in Mark Twain's story "The Celebrated Jumping Frog of Calaveras County"
diet insects
invertebrates
small vertebrates
eggLaying in large clusters attached to vegetation
family Ranidae
genus Rana
geographicRange Sierra Nevada foothills
coastal California from Mendocino County to northern Baja California
habitat coastal drainages
foothill streams
marshes
ponds
riparian areas
slow-moving streams
hasColoration brown or reddish-brown dorsum
reddish hind legs
reddish underside of hind legs
hasCommonName California red-legged frog self-linksurface differs
surface form: California red legged frog

California red-legged frog self-link
red-legged frog
hasMorphologicalFeature prominent dorsolateral folds
smooth to slightly rough skin
hasPattern black bands on legs
dark spots on back and sides
IUCNStatus Vulnerable
kingdom Animalia
largestNativeFrogIn western United States
legalProtection listed as threatened under the U.S. Endangered Species Act
listedBy U.S. Fish and Wildlife Service
maleSmallerThanFemale true
maximumAdultLength about 5.5 inches
nativeTo California, United States
surface form: California

United States of America
surface form: United States

western United States
order Anura
parentTaxon Rana draytonii
phylum Chordata
recoveryPlan U.S. Fish and Wildlife Service recovery plan for the California red-legged frog
reproductionType external fertilization
scientificName Rana draytonii
sexuallyDimorphic true
stateAmphibianOf California, United States
surface form: California
symbolOf California, United States
surface form: California
taxonRank population
subspecies
threatenedBy American bullfrog
agriculture
chytrid fungus
disease
habitat fragmentation
habitat loss
introduced predators
non-native fish
pollution
urban development
water diversion

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

California red-legged frog hasCommonName California red-legged frog self-link
California red-legged frog hasCommonName California red-legged frog self-linksurface differs
this entity surface form: California red legged frog
Pinnacles National Park notableSpecies California red-legged frog