How to Identify the Puff Adder (Identification Guide)
The puff adder is a thick-bodied African viper recognized by its bold chevron pattern, flattened triangular head, and characteristic loud hiss.
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Key identifying features
The puff adder has a short, stout, heavily built body with a distinctly triangular, flattened head much wider than its neck, and a bold pattern of pale-edged, dark chevron or crescent-shaped bands running across its back. It is well known for inflating its body and producing a loud, deep hiss when disturbed, a behavior that gives the species its common name.
Coloration & pattern
Background color ranges from pale yellow-brown and tan to gray or dark brown, overlaid with a series of dark, pale-bordered chevron-shaped bands angled backward across the body, often forming a zigzag effect along the spine. The tail typically shows narrower dark and light rings, and the belly is pale with scattered dark blotches.
Head, eyes & scales
The head is broad, flattened, and triangular, clearly distinct from the neck, with small eyes bearing vertical pupils positioned toward the front of the head. Body scales are strongly keeled and rough-textured, contributing to a dull rather than glossy appearance overall.
Size & body shape
Adults commonly range from 3 to 4 feet in length, occasionally larger, with a notably thick, heavy-bodied build relative to their modest length. The body tapers to a short tail, and the overall proportions give the snake a squat, powerful appearance rather than a sleek one.
Range & habitat where you'll see it
Puff adders have one of the widest distributions of any African venomous snake, found across savanna, grassland, scrubland, and semi-desert throughout sub-Saharan Africa and parts of the Arabian Peninsula. They rely heavily on camouflage, often remaining motionless in leaf litter, grass, or along paths rather than fleeing from disturbance.
How to tell it apart from look-alikes
The combination of a broad triangular head, bold pale-edged chevron banding, and a squat, powerful body distinguishes the puff adder from more slender African snakes with similar coloring. It differs from the related Gaboon viper by being considerably smaller and less heavily built, with a bolder, higher-contrast chevron pattern rather than the Gaboon viper's muted, intricate leaf-mimicking mosaic.
Frequently asked questions
What is the most distinctive marking on a puff adder?
A series of bold, pale-edged, dark chevron or crescent-shaped bands angled across the back, creating a zigzag effect.
How can you recognize a puff adder's head?
By its broad, flattened, triangular shape that is clearly wider than the neck, typical of vipers.
How does the puff adder behave when disturbed?
It often inflates its body and produces a loud, deep hiss rather than immediately fleeing, a behavior tied to its common name.
How does a puff adder differ from a Gaboon viper?
The puff adder is smaller and less bulky, with a bolder, higher-contrast chevron pattern compared to the Gaboon viper's muted, leaf-like mosaic.
Puff Adder identified by the community
Recent Puff Adder specimens identified with Snake Identifier.
