Its German name comes from the fact that it wraps itself around larger prey in a flash and suffocates it. Its Latin name refers to the characteristic "crown"—a heart- or horseshoe-shaped marking on its head—as well as to the fact that this widespread species was first described in Austria.
The smooth snake is non-venomous and completely harmless to humans. Eastern and Western Styria are free of venomous snakes. The venomous common viper is found only in the alpine regions of Upper Styria. Because of the spotted pattern on its back, the smooth snake is often mistaken for a common viper.
| Order | Snakes |
| Family | Vipers |
| Distribution | Europe to Western Asia |
| Habitat | warm, sunny slopes, nutrient-poor and dry grasslands, scree slopes, hedgerows, forest edges |
| Food | Specialized reptile hunter: lizards and their nests, slow worms, as well as small mammals, amphibians, and large insects |
| Activity | active during the day, in warm, humid weather from April through October |
| Weight | 50–80 (100) g |
| Size | 60–80 cm |
| Service life | 20 years |
| Reproduction | A ritualized courtship display involving flicking of the tongue and nodding of the head. Young are born in August or September after a gestation period of 4 to 5 months. Five to 15 young hatch from the eggshell immediately after birth. |
| Risk | at risk |
| Enemies | Hedgehogs, stone martens, polecats, birds of prey |