Chinese Green Tree Viper
Chinese Green Tree ViperChinese Green Tree ViperChinese Green Tree ViperChinese Green Tree Viper

Chinese Green Tree Viper

Trimeresurus stejnegeri

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
30–40% · Possible
overall probability at Cuc Phuong National Park
10 Verified records at Cuc Phuong National Park
September Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

Trimeresurus stejnegeri is a species of venomous pit viper endemic to Asia. Two subspecies are currently recognized, including the nominate subspecies described here. Common names for this pit viper include Stejneger's pit viper, Chinese pit viper, Chinese green tree viper, bamboo viper, Chinese bamboo pitviper, Chinese bamboo viper, and Chinese tree viper. For other common, non-scientific names, see § Common names below. Wikipedia →

30–40% of wildlife watchers report a Chinese Green Tree Viper sighting in Cuc Phuong National Park, based on 10 days of visitor records from GBIF citizen-science data.

Closest Relatives at Cuc Phuong National Park

White-lipped Pit Viper
LC

White-lipped Pit Viper

☀️ Diurnal Reptile

Trimeresurus albolabris

Insufficient data
Taiwanese Habu
LC

Taiwanese Habu

☀️ Diurnal Reptile

Protobothrops mucrosquamatus

30–40% · Possible

📅 Monthly Probability

10–20
Jan
40–50
Feb
30–40
Mar
5–10
Apr
5–10
May
50–60
Jun
5–10
Jul
40–50
Aug
60–70
Sep
50–60
Oct
10–20
Nov
60–70
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Cuc Phuong National Park 🇻🇳 Vietnam
30–40%
2 Taroko National Park 🇹🇼 Taiwan
10–20%

Quick answers

What are the chances of seeing a Chinese Green Tree Viper in Cuc Phuong National Park?

About 34% of wildlife watchers report a Chinese Green Tree Viper sighting in Cuc Phuong National Park, based on 10 days of visitor records from GBIF citizen-science data.

When is the best time to see Chinese Green Tree Viper in Cuc Phuong National Park?

September has the highest sighting rate for Chinese Green Tree Viper in Cuc Phuong National Park in our monthly data.

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