Snake Identifier
Northern Green Snake (Philothamnus irregularis)
Northern green bush snake by RatioTile, via Wikimedia Commons, licensed under CC BY-SA 4.0
Colubrids

Northern Green Snake

Philothamnus irregularis

A slender, bright green tree-dwelling colubrid of West and Central Africa, well camouflaged among foliage.

Adult length
0.6-1.0 m (2.0-3.3 ft)
Range
West and Central Africa

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Overview

The northern green snake is a slender, arboreal colubrid distributed across West and Central Africa, part of the diverse Philothamnus group of African green snakes. Its vivid green coloring provides excellent camouflage among leaves and vines in the forest and savanna habitats it occupies.

The northern green snake is one of the more commonly encountered green tree snakes across its range, often mistaken for other green-colored species.

How to identify it

  • Bright green to yellowish-green body, sometimes with a bluish tinge
  • Slender, elongated build suited to climbing
  • Large eyes with round pupils
  • Smooth scales
  • Pale yellow or greenish-white underside

Its uniform bright green coloration and slender arboreal build distinguish it from superficially similar green mambas and vine snakes, though coloration alone can be misleading.

Habitat & range

This species occupies forest edges, woodland, savanna thickets, and vegetation along waterways across West and Central Africa, often found in shrubs, low trees, and dense foliage where its coloring provides camouflage.

Behavior, diet & reproduction

Northern green snakes are diurnal and largely arboreal, foraging among branches and foliage for frogs, lizards, and occasionally small birds and eggs. They rely on camouflage and swift retreat when threatened. Reproduction is oviparous, with clutches of eggs laid in tree hollows, leaf litter, or other sheltered sites.

Frequently asked questions

How big does the northern green snake get?

Adults typically reach 0.6-1.0 m (2.0-3.3 ft).

Where is the northern green snake found?

It occurs across West and Central Africa in forest and woodland vegetation.