Issued as part of the ongoing Bicentennial celebration, the 13Â¢ State Flags pane was a first in U.S. history. This was the first time a pane with 50 face-different stamps was issued.
NON-VENOMOUS. NON-VENOMOUS. Description: A greenish-brown snake with a diamond-like pattern on its back and dark bars on the sides of its body. The belly scales are yellow with dark markings on the sides. Males are smaller and thinner than females and they have small bumps on their chin.
Plains Garter Snake. Thamnophis radix. Description: This snake has a thick dorsal stripe that runs down the center of the back from head to tail. It can be yellow to reddish-orange. It has a thinner yellow stripe on either side of the main dorsal stripe, with a black checkered pattern between the stripes.