species 602 observations
Ridge-nosed Rattlesnake
Crotalus willardi
Field notes
Common names: ridge-nosed rattlesnake, Willard's rattlesnake, Willard's rattler
Crotalus willardi is a venomous pit viper species found in the southwestern United States and Mexico. This snake is found mainly in the "sky island" region. The IUCN reports this snake's conservation status as being of Least Concern. It is the official state reptile of Arizona.
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Greener is more native, amber more introduced; paler is less certain. How this was decided