Trimeresurus rubeus

S Vietnam, 1100m alt 

Trimeresurus rubeus is a species of pit viper native to southeastern Asia, often found in forested areas. Their coloration can vary, but they are typically known for their green to brown scales and distinctive triangular-shaped head. These snakes are venomous, and their venom primarily affects the blood and tissues of their prey. Always approach them with caution in their natural habitats.