Field Guide

The western foxsnake is a moderately large snake with distinct brown blotches. In Missouri, it is rare and found only in our far northwestern counties.

Missouri's largest snake, the bullsnake may hiss loudly and vibrate its tail when alarmed, but it is nonvenomous. This species is extremely valuable in controlling destructive rodents.

Missouri’s largest venomous snake, the timber rattlesnake, is dangerously venomous, but there are few cases of rattlesnake bites in our state. It frequents rough country, is mostly nocturnal in summer, and few Missourians ever encounter it.

The broad-banded watersnake is a semiaquatic snake with broad, irregularly shaped bands that can be brown, reddish brown, or black and are separated by yellow or gray. This nonvenomous species is restricted to the southeastern corner of the state.

The northern diamond-backed watersnake is our largest watersnake. It has numerous diamond-shaped light markings along the back. It occurs in the Bootheel and north along the Mississippi River, and in much of northern and western Missouri. It doesn’t occur in the Ozarks or in much of central-eastern Missouri.

The orange-striped ribbonsnake is a type of gartersnake named for the attractive orange or yellow stripes running the length of its body, alternating with wide black stripes. It is found statewide, but seldom far from water.

The speckled kingsnake is generally black, but a white or yellow spot in the center of most of the scales makes it look speckled. The belly is yellowish with some irregular black markings. A harmless, beneficial snake found nearly statewide.

The eastern gartersnake and red-sided gartersnake are Missouri's most common gartersnakes. The color is variable, but there are normally three yellowish stripes, one down the back and one on each side. There are narrow black bars between the scales along the upper lip.

A medium-sized, striped snake of wet prairies and marshes, the plains gartersnake occurs mainly in Missouri's north-central and northwestern counties, with isolated populations in and west of the St. Louis area.