{{Short description|Species of maple}} {{Speciesbox | image = Acer_tegmentosum1.jpg | status = LC | status_system = IUCN3.1 | status_ref = <ref name="iucn status 20 November 2021">{{cite iucn |author=Chen, Y. |author2=Gibbs, D. |author3=Oldfield, S. |date=2018 |title=''Acer tegmentosum'' |volume=2018 |article-number=e.T193883A2288647 |doi=10.2305/IUCN.UK.2018-1.RLTS.T193883A2288647.en |access-date=20 November 2021}}</ref> | genus = Acer | parent = Acer sect. Macrantha | species = tegmentosum | authority = Maxim 1856 | synonyms_ref = <ref>[http://www.theplantlist.org/tpl1.1/record/kew-2616545 The Plant List, ''Acer tegmentosum'' Maxim. ]</ref> | synonyms = *''Acer pensylvanicum'' var. ''tegmentosum'' <small>(Maxim.) Wesm. </small> *''Acer hersii'' <small>Rehder</small> *''Acer pavolinii'' <small>Pamp.</small> }}

'''''Acer tegmentosum''''', the '''Manchurian striped maple''',<ref name = RHSPF>{{cite web | url= https://www.rhs.org.uk/Plants/289/i-Acer-tegmentosum-i/Details | title = ''Acer tegmentosum'' | publisher = Royal Horticultural Society | access-date=29 December 2017}}</ref> is a species of deciduous tree in the maple genus, which is native to the southern part of the Russian Far East (along the Amur and Ussuri rivers in Primorsky Krai), northeastern China (Heilongjiang, Jilin, Liaoning), and Korea.<ref name=h>[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200013120 Flora of China, ''Acer tegmentosum'' Maximowicz, 1856. <big>青楷枫</big> qing kai feng ]</ref>

''Acer tegmentosum'' is cold-hardy down to USDA hardiness zone 5a (−29&nbsp;°C). At maturity (20-plus years) it can reach a height of {{convert|10-15|m|ft}} and a spread of {{convert|8|m|ft}}, with greenish-grey bark with bright white stripes. Leaves are simple, each up to 12&nbsp;cm across, round in general outline but with 3 shallow lobes (sometimes with two small additional lobes near the base), and doubly toothed edges.<ref>{{Cite web |url=http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/acer_tegmentosum.html |title=North Carolina State University Cooperative Extension, Trees: ''Acer tegmentosum'' |access-date=2011-04-27 |archive-url=https://web.archive.org/web/20120925190849/http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/acer_tegmentosum.html |archive-date=2012-09-25 }}</ref><ref>{{Cite web |url=http://www.treetopics.com/acer_tegmentosum/index.htm |title=''Acer tegmentosum'' - Tree Topics, Karren Wcisel, Manchurian Striped Maple Tree Fact Sheet |access-date=2011-04-27 |archive-date=2008-08-20 |archive-url=https://web.archive.org/web/20080820075131/http://www.treetopics.com/acer_tegmentosum/index.htm }}</ref><ref name=h/><ref>[https://www.biodiversitylibrary.org/page/8368165#page/221/mode/1up Rehder, Alfred 1922. Journal of the Arnold Arboretum 3(4): 217–219] description in Latin, commentary in English, as ''Acer hersii''</ref> The green leaves turn bright yellow before falling in autumn. Pendulous racemes of yellow-green flowers 7–10&nbsp;cm long give way to samaras that are 1.1-1.3&nbsp;cm long.<ref name=":0">{{Cite web|title=Acer tegmentosum - Trees and Shrubs Online|url=https://treesandshrubsonline.org/articles/acer/acer-tegmentosum/|access-date=2021-03-23|website=treesandshrubsonline.org}}</ref>

In cultivation in the UK it has gained the Royal Horticultural Society's Award of Garden Merit.<ref name="RHSPF" /> Cultivars include 'Joe Witt', 'Valley Phantom',<ref name=":0" /> and 'White Tigress'.<ref>{{Cite web|title=PlantSearch|url=https://tools.bgci.org/plant_search.php?action=Find&lang=eng&ftrGenus=Acer&ftrSpecies=tegmentosum|access-date=23 March 2021|website=Botanic Gardens Conservation International}}</ref>

Though generally not considered a concern for conservationists, it was listed as "vulnerable" in the 2004 Chinese Species Red List.<ref>{{Cite book|last1=Gibbs|first1=Douglass|title=The Red List of Maples|last2=Chen|first2=Yousheng|publisher=Botanic Gardens Conservation International|year=2009|isbn=978-1-905164-31-8|location=Richmond, UK|page=33}}</ref>

==References== {{Reflist}}

==External links== *[http://calphotos.berkeley.edu/cgi/img_query?enlarge=0000+0000+0105+1320 CalPhotos photo gallery, University of California] *[http://www.efloras.org/object_page.aspx?object_id=110299&flora_id=2 line drawing for Flora of China, figure 583, drawings 3-4 at top]

{{Taxonbar|from=Q1205178}}

tegmentosum Category:Flora of Manchuria Category:Flora of the Russian Far East Category:Flora of Korea Category:Plants described in 1856 Category:Taxa named by Karl Maximovich

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