Snake Identifier
Green Bush Rat Snake (Gonyosoma prasinum)
Rhynchophis prasinus - spécimen adulte - Ménagerie Paris 01 by Cedricguppy - Loury Cédric, via Wikimedia Commons, licensed under CC BY-SA 4.0
Colubrids

Green Bush Rat Snake

Gonyosoma prasinum

A slender, bright green arboreal snake found in montane forests of Southeast Asia and southern China, well camouflaged among foliage.

Venomous?
Non-venomous
Adult length
0.9-1.2 m (3-4 ft)
Range
Southeast Asia and southern China

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Overview

The green bush rat snake is a small to moderately sized arboreal colubrid distributed across montane forests of Southeast Asia and southern China. Its bright green coloration provides effective camouflage in its leafy habitat.

This species is non-venomous and not considered dangerous to humans.

It is less well known than some of its larger relatives, largely due to its secretive, canopy-dwelling habits in remote forested regions.

How to identify it

The body is a uniform bright to slightly bluish green, sometimes with a paler underside, and lacks the bold pattern seen in many related species.

  • Slender, laterally compressed body suited to climbing
  • Large eyes with round pupils
  • Elongated head
  • Smooth scales
  • Adults typically reach 0.9-1.2 m

Habitat & range

This species inhabits montane and hill forests, often in dense vegetation and shrub layers, across parts of southern China, Myanmar, Thailand, Laos, and Vietnam, typically at moderate to higher elevations.

Behavior, diet & reproduction

The green bush rat snake is arboreal and largely diurnal to crepuscular, moving through shrubs and low trees in search of prey. It tends to be alert and may flee quickly when disturbed.

Its diet includes small lizards, frogs, and occasionally rodents or birds. It is oviparous, laying small clutches of eggs during warmer months.

Frequently asked questions

Is the green bush rat snake venomous?

No, it is non-venomous and not dangerous to humans.

How big does the green bush rat snake get?

Adults typically reach 0.9-1.2 m in length.

Where is the green bush rat snake found?

It occurs in montane forests of southern China and parts of mainland Southeast Asia.

How does the green bush rat snake avoid predators?

Its bright green coloration provides camouflage among the leaves and shrubs it inhabits.