Thai National Parks

Species of Thailand

Yunnan bamboo pit viper

Trimeresurus yunnanensis

Karl Patterson Schmidt, 1925

In Thai: งูเขียวไผ่, ngu khieow phai

Trimeresurus yunnanensis, commonly known as the Yunnan bamboo pitviper, is a venomous pitviper species endemic to China.

Description

The scalation includes 19 (or 21) rows of dorsal scales at midbody, 154-164/150-172 ventral scales in males/females, 61-71/52-65 subcaudal scales in males/females, and 9-11 supralabial scales.

Geographic range

It is found in southern China (Yunnan and southwestern Sichuan). The type locality given is "Tengyueh, Yunnan Province, China" (= Tengchong County).

Taxonomy

Zhao (1995) raised this taxon back up to the level of a full species: T. yunnanensis.

This article uses material from Wikipedia released under the Creative Commons Attribution-Share-Alike Licence 3.0. Eventual photos shown in this page may or may not be from Wikipedia, please see the license details for photos in photo by-lines.

Scientific classification

Kingdom
Animalia
Phylum
Chordata
Subphylum
Vertebrata
Class
Reptilia
Order
Squamata
Suborder
Serpentes
Family
Viperidae
Genus
Trimeresurus
Species
Trimeresurus yunnanensis

Common names

  • Chinese: 云南竹叶青蛇
  • English: Yunnan bamboo pit viper
  • Thai: งูเขียวไผ่, ngu khieow phai

Synonyms

  • Trimeresurus cf. yunnanensis, Jigmet Wangyal et al. (2026)
  • Trimeresurus (Viridovipera) yunnanensis, Zeeshan A. Mirza et al. (2023)
  • Viridovipera yunnanensis, Wang et al. (2022)
  • Trimeresurus yunnanensis, Varad B. Rathee et al. (2022)
  • Viridovipera yunnanensis, Van Wallach, Kenneth L. Williams & Jeff Boundy (2014)
  • Trimeresurus (Viridovipera) yunnanensis, Patrick David et al. (2011)
  • Viridovipera yunnanensis, Jeff E. Dawson et al. (2008)
  • Viridovipera yunnanensis, Peng Guo and co-authors (2006)
  • Viridovipera yunnanensis, Anita Malhotra & Roger S. Thorpe (2004)
  • Trimeresurus yunnanensis, Ao Wei et al. (2004)

Expand to list more

Species in same genus

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Photos

Please help us review our species pages if wrong photos are used or any other details in the page is wrong. We can be reached via our contact us page.

Trimeresurus yunnanensis (male, adult) - Phu Hin Rong Kla National Park

Creative Commons Attribution 4.0 International Thai National Parks

Trimeresurus yunnanensis (male, adult) - Phu Hin Rong Kla National Park
Trimeresurus yunnanensis (female, adult) - Phu Suan Sai National Park

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Trimeresurus yunnanensis (female, adult) - Phu Suan Sai National Park
Trimeresurus yunnanensis (female, adult) - Doi Phu Kha National Park

Creative Commons Attribution 4.0 International Thai National Parks

Trimeresurus yunnanensis (female, adult) - Doi Phu Kha National Park
Trimeresurus yunnanensis (female, sub-adult) - Doi Phu Kha National Park

Creative Commons Attribution 4.0 International Thai National Parks

Trimeresurus yunnanensis (female, sub-adult) - Doi Phu Kha National Park
Trimeresurus yunnanensis (female, adult) - Phu Hin Rong Kla National Park

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Trimeresurus yunnanensis (female, adult) - Phu Hin Rong Kla National Park
Trimeresurus yunnanensis (female, juvenile) - Doi Phu Kha National Park

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Trimeresurus yunnanensis (female, juvenile) - Doi Phu Kha National Park
Trimeresurus yunnanensis (male, juvenile) - Phu Hin Rong Kla National Park

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Trimeresurus yunnanensis (male, juvenile) - Phu Hin Rong Kla National Park
Trimeresurus yunnanensis (male, juvenile) - Phu Hin Rong Kla National Park

Creative Commons Attribution 4.0 International Thai National Parks

Trimeresurus yunnanensis (male, juvenile) - Phu Hin Rong Kla National Park
Trimeresurus yunnanensis (male, juvenile) - Phu Kradueng National Park

Creative Commons Attribution 4.0 International Thai National Parks

Trimeresurus yunnanensis (male, juvenile) - Phu Kradueng National Park

Range Map

Distribution map of Yunnan bamboo pit viper, Trimeresurus yunnanensis in Thailand
  • Chaloem Phra Kiat District, Nan
  • Doi Pha Hom Pok National Park
  • Doi Phu Kha National Park
  • Nam Nao National Park
  • Phu Hin Rong Kla National Park
  • Phu Khiao Wildlife Sanctuary
  • Phu Kradueng National Park
  • Phu Luang Wildlife Sanctuary
  • Phu Suan Sai National Park
  • Thung Salaeng Luang National Park

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Range map of Trimeresurus yunnanensis in Thailand