grass snake

(noun) harmless European snake with a bright yellow collar; common in England. Synonyms: grass snake, ring snake, ringed snake, Natrix natrix.

(noun) any of numerous nonvenomous longitudinally-striped viviparous North American and Central American snakes. Synonyms: garter snake, grass snake.

(noun) either of two North American chiefly insectivorous snakes that are green in color. Synonyms: green snake, grass snake.