With adults reaching over 4m in length, this is Australia's second largest snake species. Its high midbody dorsal scale count, 61-72, makes the skin look smoother than that of other pythons. The number of ventral scales is 355-377. The color pattern is a uniform chocolate brown to olive green while the belly is usually cream colored.
Unfortunately, this species is occasionally confused with the venomous king brown snake, Pseudechis australis, and killed as a consequence.