- Coloration ranges from gray to silver-gray or copper with short, dark, dash-like lines at mid-body
- The head is very narrow, pointed, and elongated
- Vine snakes are back-fanged, meaning the fangs are located towards the back of the mouth ... these species are very dangerous as their venoms are highly toxic and known to deliver fatal bites
- This snake has an enormous range extending from South America through Mexico and into extreme south-central Arizona (Santa Cruz County)