View source for Acer carpinifolium

{{SPlantbox
|familia=Aceraceae
|genus=Acer
|species=carpinifolium
|common_name=Hornbeam maple
|name_ref=Flora - A Gardener's Encyclopedia
|habit=tree
|habit_ref=Flora - A Gardener's Encyclopedia
|Max ht box=30
|Max ht metric=ft
|height_ref=Flora - A Gardener's Encyclopedia
|Max wd box=30
|Max wd metric=ft
|width_ref=Flora - A Gardener's Encyclopedia
|lifespan=perennial
|life_ref=Flora - A Gardener's Encyclopedia
|exposure=sun
|sun_ref=Flora - A Gardener's Encyclopedia
|features=flowers
|flower_season=early spring, mid spring, late spring
|flower_ref=Flora - A Gardener's Encyclopedia
|Temp Metric=°F
|min_zone=4
|usda_ref=Flora - A Gardener's Encyclopedia
|max_zone=8
|image=Hornbeam Maple Acer carpinifolium Tree 3264px.jpg
|image_width=240
}}
'''''Acer carpinifolium''''' ('''Hornbeam Maple'''; "zigzag tree") is a species of [[maple]] native to [[Japan]], on the islands of [[Honshū]], [[Kyūshū]], and [[Shikoku]], where it grows in woodlands and alongside streams in mountainous areas.<ref name=rokko>Rokko mountain chain guide of trees: [http://shinrin.cool.ne.jp/sub283.html ''Acer carpinifolium''] (in Japanese; [http://translate.google.com/translate?hl=en&sl=ja&u=http://shinrin.cool.ne.jp/sub283.html&sa=X&oi=translate google translation])</ref><ref name=toj>Trees of Japan: [http://www005.upp.so-net.ne.jp/goostake/GOO/XCHIDORI.HTM ''Acer carpinifolium'']</ref>

It is a small [[deciduous]] [[tree]] growing to 10–15 m tall, with smooth, dark greenish-grey to grey-brown bark. The [[leaf|leaves]] are 7-15 cm long and 3-6 cm broad, simple, unlobed, and pinnately-veined with 18-24 pairs of veins and a serrated margin. They resemble leaves of [[hornbeam]]s more than they do other maples, except for being arranged in opposite pairs, and in the very small basal pair of veins being palmately arranged as in other maples. The [[flower]]s are 1 cm diameter, greenish yellow, produced in pendulous [[raceme]]s 5-12 cm long in spring as the new leaves open; they are [[plant sexuality|dioecious]], with male and female flowers on separate trees. The [[fruit]] is a [[Samara (fruit)|samara]] of two seeds each with a 2-3 cm long wing.<ref name=rokko/><ref name=toj/><ref name=boroboro>Boroboro Flower Book: [http://boroboro.seesaa.net/archives/20051201.html ''Acer carpinifolium''] (in Japanese; [http://translate.google.com/translate?hl=en&sl=ja&u=http://boroboro.seesaa.net/archives/20051201.html&sa=X&oi=translate google translation])</ref><ref name=rushforth>Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.</ref>

It is occasionally cultivated as an [[ornamental plant]] in temperate regions, mainly as a botanical curiosity to demonstrate the wide range of leaf morphology in the genus ''Acer'', but also for its bright yellow autumn colour. Both the scientific and common names derive from the superficial resemblance of its leaves to the those of the genus ''[[Carpinus]]'' (hornbeams).<ref name=rushforth/>

{{Inc|
Acer carpinifolium, Sieb. & Zucc. Hornbeam Maple. Tree, 30 ft.: lvs. oblong-ovate, acuminate, sharply and doubly serrate, nearly glabrous, 3-6 in. long: staminate fls. apetalous, in few-fld. racemes; pistillate with petals, in longer racemes.—Very distinct, hardy species; the lvs. are almost exactly like those of Carpinus.
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==Cultivation==
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===Propagation===
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===Pests and diseases===
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==Species==
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==Gallery==
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<gallery>
Image:Hornbeam Maple Acer carpinifolium Leaves 3000px.jpg|Foliage
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Image:Upload.png| photo 2
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</gallery>

==References==
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
<!--- xxxxx  *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608  -->

==External links==
*{{wplink}}

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