Opheodrys aestivus, commonly known as the rough green snake, is a slender, vividly green snake found in the southeastern United States. Preferring lush, moist environments, it is adept at climbing through vegetation. Its diet consists mainly of insects and spiders. The snake is non-venomous and known for its gentle nature.

Opheodrys aestivus, commonly known as the rough green snake, is native to the southeastern United States. It is found from southern New Jersey west to eastern Kansas and Texas, and south to Florida and the Gulf of Mexico. Its range extends slightly into northeastern Mexico.

The rough green snake typically inhabits moist, lush environments. It is commonly found in dense vegetation near water bodies such as streams, ponds, and swamps. This species thrives in temperate to warm climates and is often associated with deciduous and mixed forests, as well as thickets and meadows.

Opheodrys aestivus is arboreal and diurnal, primarily living in trees and shrubs. It is insectivorous, feeding on insects and spiders, which aligns with its ecological role as a predator of small invertebrates. The species is well-camouflaged in green foliage, aiding in both predation and protection from predators.