{{Short description|Species of snake}} {{Speciesbox | image = | status = LC | status_system = IUCN3.1 | status_ref = <ref name="iucn status 20 November 2021">{{cite iucn |author=Lau, M. |author2=Zhou, Z. |date=2012 |title=''Trimeresurus yunnanensis'' |volume=2012 |article-number=e.T192051A2033367 |doi=10.2305/IUCN.UK.2012-1.RLTS.T192051A2033367.en |access-date=20 November 2021}}</ref> | genus = Trimeresurus | species = yunnanensis | authority = [[Karl Patterson Schmidt|Schmidt]], 1925 | synonyms = * ''Trimeresurus yunnanensis'' <small>Schmidt, 1925</small> * ''Trimeresurus gramineus yunnanensis'' <small>&ndash; [[Leonhard Hess Stejneger|Stejneger]], 1927</small> * ''Trimeresurus stejnegeri yunnanensis'' <small>&ndash; [[Clifford H. Pope|Pope]], 1935</small><ref name="McD99">McDiarmid RW, [[Jonathan A. Campbell|Campbell JA]], Touré T. 1999. ''Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1''. Herpetologists' League. 511 pp. {{ISBN|1-893777-00-6}} (series). {{ISBN|1-893777-01-4}} (volume).</ref> *''Trimeresurus yunnanensis'' <br /><small>&ndash; [[:fr:Er-mi Zhao|Zhao]], 1995</small> *''Viridovipera yunnanensis'' <br /><small>&ndash; Malhotra & Thorpe, 2004</small> *''Trimeresurus (Viridovipera) yunnanensis'' <br /><small>&ndash; David et al., 2011</small><ref name="RDB">The Reptile Database. www.reptile-database.org.</ref> }}

'''''Trimeresurus yunnanensis''''', [[common name|commonly known]] as the '''Yunnan bamboo pitviper''',<ref name="Gum04">Gumprecht A, Tillack F, [[Nikolai Liutsianovich Orlov|Orlov NL]], [[Ashok Captain|Captain A]], Ryabov S. 2004. ''Asian Pitvipers''. Geitje Books. Berlin. 1st Edition. 368 pp. {{ISBN|3-937975-00-4}}.</ref> is a [[venomous snake|venomous]] [[Crotalinae|pitviper]] [[species]]<ref name="ITIS">{{ITIS |id=635228 |taxon=''Trimeresurus yunnanensis'' |accessdate=12 August 2008}}</ref> [[Endemism|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]].<ref name="Gum04"/>

==Geographic range== It is found in southern China ([[Yunnan]] and southwestern [[Sichuan]]).<ref name="RDB"/> The [[Type locality (biology)|type locality]] given is "Tengyueh, [[Yunnan Province]], China" (= [[Tengchong County]]).<ref name="Gum04"/>

==Taxonomy== Zhao (1995) raised this taxon back up to the level of a full species: ''T. yunnanensis''.<ref name="Gum04"/>

==References== {{Reflist}}

==Further reading== * [[Karl Patterson Schmidt|Schmidt, K.P.]] 1925. New Reptiles and a New Salamander from China. ''American Museum Novitates'' (157): 1–5. ("''Trimeresurus yunnanensis'', new species", pp.&nbsp;4–5.)

{{Taxonbar|from=Q1036954}}

[[Category:Trimeresurus|yunnanensis]] [[Category:Fauna of Yunnan]] [[Category:Snakes of China]] [[Category:Endemic reptiles of China]] [[Category:Taxa named by Karl Patterson Schmidt]]

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