Coronella girondica is brown, grayish, or reddish dorsally, with dark brown or blackish transverse bars or spots. On the nape there is a dark U-shaped mark, or a pair of dark elongate spots.
There is a dark streak from the eye to the corner of the mouth, a dark band from eye to eye across the prefrontals, and a black line below the eye. Ventrally it is yellowish or red with black markings. The dorsal scales, which are smooth, are in 21 rows (rarely 19). Adults may attain a total length of 62 cm (2 feet), of which 12.5 cm (5 inches) is tail.
Its natural habitats are temperate forests, Mediterranean-type shrubby vegetation, rocky areas, pastureland, and plantations. It is threatened by habitat loss.