How to Identify the Common Puff Adder (Identification Guide)

Key identifying features

The Common Puff Adder is easily recognized by its exceptionally stout, thick body, broad triangular head, and bold pattern of dark chevron-shaped or angular bands running across its back. Its name comes from its habit of inflating its body and hissing loudly when disturbed, a distinctive defensive display paired with its visually heavy build.

Coloration & pattern

Base coloration varies from pale yellow-brown to olive, grey, or reddish-brown, providing excellent camouflage against leaf litter, sand, and dry grass. A series of pale-edged, dark brown to black chevron or crescent-shaped bands crosses the back at regular intervals, often appearing as a series of connected arrowhead or U-shaped markings. This pattern helps break up the snake's outline against varied ground cover.

Head, eyes & scales

The head is large, broad, and distinctly triangular, clearly wider than the neck, with a somewhat blunt, rounded snout. Eyes are relatively small with vertically elliptical pupils positioned toward the top of the head. Body scales are heavily keeled, giving a rough, dull texture rather than a glossy sheen. Fine dark lines or markings often radiate from the eye toward the back of the jaw.

Size & body shape

This species has an unusually thick, heavy body relative to its length, among the stoutest builds of any viper. The tail is short and stubby. This bulky proportion, combined with slow, deliberate movement on the ground, differs markedly from the slender, fast-moving colubrids that may share its habitat.

Range & habitat where you'll see it

Widespread across much of sub-Saharan Africa, the Common Puff Adder occupies savanna, grassland, scrubland, and semi-arid habitats, avoiding only the deepest rainforest and highest, coldest mountain zones. It relies heavily on camouflage, often remaining motionless in leaf litter, grass tussocks, or along sandy paths.

How to tell it apart from look-alikes

Its extremely stout body, broad triangular head, and dark chevron banding separate it from more slender colubrids and from other African vipers such as night adders, which are smaller and less heavily built with less pronounced chevron patterning. Its wide distribution and generalist habitat use also distinguish it from more range-restricted vipers such as the Gaboon vipers, which favor forest habitats.