View source for Acer mandshuricum

{{SPlantbox
|familia=Aceraceae
|genus=Acer
|species=mandshuricum
|common_name=Manchurian 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=10
|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=5
|usda_ref=Flora - A Gardener's Encyclopedia
|max_zone=8
|image=Acer mandshuricum leaf.jpg 
|image_width=240
|image_caption=Leaf of Manchurian Maple
}}
'''''Acer mandshuricum''''' ('''Manchurian Maple'''), is a species of [[maple]] native to [[China]] (southeastern [[Gansu]], [[Heilongjiang]], [[Jilin]], [[Liaoning]], southern [[Shaanxi]]), [[Korea]] and [[Russia]] ([[Primorsky Krai]]). 

It is a slender [[deciduous]] [[tree]] that reaches a height of up to 30 m tall but is usually smaller.<ref name="xu">Xu, T.-z., Chen, Y., de Jong, P. C., & Oterdoom, H. J. [http://hua.huh.harvard.edu/china/mss/volume11/Aceraceae-AGH_reviewing.htm ''Flora of China'': Aceraceae (draft)]</ref><ref name="gelderen">van Gelderen, C.J. & van Gelderen, D.M. (1999). ''Maples for Gardens: A Color Encyclopedia''.</ref> It is a trifoliate maple related to such other species as [[Acer triflorum|Three-flower Maple]] (''Acer triflorum'') and [[Paperbark Maple]] (''Acer griseum'') but has smooth, gray [[bark]] dissimilar to the [[exfoliation (botany)|exfoliating bark]] of either.<ref name="gelderen"/>

The [[leaf|leaves]] have a 7-10 cm [[Petiole (botany)|petiole]] and three leaflets; the leaflets are short-stalked, oblong, 5-10 cm (2-4 inches) long and 1.5-3 cm broad, with serrated margins, the central leaflet the same size as or slightly larger than the two side leaflets. The [[flower]]s are yellowish-green, produced in [[panicle|corymbs]] of three to five together. The hard, horizontally-spreading [[samara (fruit)|samaras]] are 3-3.5 cm long and 1 cm broad. It leafs out early in the spring and the deep green leaves are contrast with its red petioles throughout the growing season.<ref name="xu"/><ref name="bean">Bean, W. J. (1970). ''Trees and Shrubs Hardy in the British Isles'', 8th ed.</ref>

The species was first introduced to cultivation in 1904, when trees were planted at the [[Royal Botanic Gardens, Kew]] in Britain.<ref name="bean"/> It has not proved very successful in cultivation in Britain, as its adaptation to a continental climate results in its early leafing and being damaged by late frosts in spring there; the largest recorded specimen is 8 m tall (Tree Register of the British Isles).

Although it is rarely seen in cultivation outside of [[arboretum|arboreta]], its narrow habit makes it suitable for small gardens and, like its relatives, it has spectacular fall colour that includes pink and orange tones.  Best growth occurs in full sun to partial shade and in [[acidity|acid]] to neutral soil that is moist but well-drained.<ref name="onla"> [http://www.onla.org/ps_00mandshurian.html ONLA Plant Selection Committee].</ref>

In the [[United States]], mature specimens can be seen at [[Arnold Arboretum]] in [[Boston, Massachusetts]], including one 70-year-old specimen that has reached a size of approximately 13 m (40 ft) tall and 8 m (25 ft) wide. In [[Canada]], the [[Royal Botanical Gardens, Ontario|Royal Botanical Gardens]] in [[Hamilton, Ontario]] have three Manchurian maples each about 10 m (35 ft) tall.<ref name="onla"/>

{{Inc|
Acer mandshuricum, Maxim. Shrub or small tree: branchlets glabrous: lfts. oblong or oblong-lanceolate. 2-3 1/2 in. long, short-stalked, acuminate, remotely and obtusely serrate, glabrous, glaucous beneath; petioles glabrous, red, 2-4 in. long: fls. in few-fld. glabrous corymbs: fr. on stalks l/2-3/4in. long; nutlets thick, glabrous; wings spreading at obtuse angles. Manchuria. —Graceful maple, hardy at the Arnold Arboretum; the red color of the slender lf.-stalks contrasts well with the dark green foliage.
{{SCH}}
}}

==Cultivation==


===Propagation===


===Pests and diseases===


==Varieties==


==Gallery==
<gallery perrow=5>
File:Acer mandshuricum flowers.jpg| photo 1
File:Acer mandshuricum foliage.jpg| photo 2
Image:Upload.png| photo 3
</gallery>

==References==
<references/>
<!--- 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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