species 38,608 observations

Western Rattlesnake

Crotalus oreganus

Field notes

Crotalus oreganus, commonly known as the Western rattlesnake or northern Pacific rattlesnake, is a venomous pit viper species found in western North America from the Baja California Peninsula to the southern interior of British Columbia.

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Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided