Difference between revisions of "Paperbark Maple"

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__NOTOC__{{Plantbox
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{{SPlantbox
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| name = ''Acer griseum''
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|familia=Aceraceae
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| common_names = Paperbark Maple
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|genus=Acer
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| growth_habit = deciduous tree
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|species=griseum
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| high = 10-15 m
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|common_name=Chinese paperbark maple, Paperbark maple
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| wide = 30-70 cm trunk diameter
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|name_ref=Flora - A Gardener's Encyclopedia
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| origin = China
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|habit=tree
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| poisonous =     <!--- indicate parts of plants which are known/thought to be poisonous -->
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|habit_ref=Flora - A Gardener's Encyclopedia
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| lifespan = perennial
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|Max ht box=40
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| exposure =     <!--- sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->
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|Max ht metric=ft
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| water =     <!--- frequent, regular, drought tolerant, let dry then soak -->
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|height_ref=Flora - A Gardener's Encyclopedia
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| features =     <!--- flowers, fragrance, naturalizes, invasive -->
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|Max wd box=35
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| hardiness = -35[[Celsius|°C]]
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|Max wd metric=ft
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| bloom =     <!--- seasons which the plant blooms, if it is grown for it's flowers -->
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|width_ref=Flora - A Gardener's Encyclopedia
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| usda_zones =     <!--- eg. 8-11 -->
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|origin=China
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| sunset_zones = 2-9, 14-21, 31-41
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|lifespan=perennial
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| color = IndianRed
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|life_ref=Flora - A Gardener's Encyclopedia
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| image = Upload.png  <!--- Freesia.jpg -->
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|exposure=sun
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| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
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|sun_ref=Flora - A Gardener's Encyclopedia
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| image_caption =    <!--- eg. Cultivated freesias -->
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|features=deciduous, flowers
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|regnum = Plantae
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|flower_season=early spring, mid spring, late spring
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|unranked_divisio = Angiosperms
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|flower_ref=Flora - A Gardener's Encyclopedia
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|unranked_classis = Eudicots
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|Min Temp Num=-35
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|unranked_ordo = Rosids
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|Temp Metric=°C
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|ordo = Sapindales
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|min_zone=4
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|familia = Sapindaceae
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|usda_ref=Flora - A Gardener's Encyclopedia
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|genus = Acer
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|max_zone=8
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|species = griseum
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|sunset_zones=2-9, 14-21, 31-41
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|image=Acer griseum Morton 836-58-7.jpg
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|image_width=200
 
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{{edit-desc}}<!--- Type GENERAL genus/plant description below this line, then delete this entire line -->
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'''''Acer griseum''''' ('''Paperbark Maple'''; {{zh|s=血皮枫|t=血皮楓|p=xuè pí fēng}}) is a species of [[maple]] native to central [[China]], in the provinces of [[Gansu]], [[Henan]], [[Hubei]], [[Hunan]], [[Shaanxi]], [[Shanxi]], and [[Sichuan]], at altitudes of 1,500–2,000 m.<ref name=focd>Flora of China (draft): [http://web.archive.org/web/20060209210809/http://hua.huh.harvard.edu/china/mss/volume11/Aceraceae-AGH_coauthoring.htm ''Acer griseum'']</ref>
  
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It is a small to medium-sized [[deciduous]] [[tree]], reaching 6-9 m (20-30 ft) tall, 5-6 m (15-25 ft) wide, with a trunk up to 70 cm (2 ft) diameter.<ref name=mapletrees.com>http://www.maple-trees.com/pages/paperbark-maple.php</ref>  The [[bark]] is smooth, shiny orange-red, peeling in thin, papery layers; it may become fissured in old trees. The shoots are densely downy at first, this wearing off by the second or third year and the bark exfoliating by the third or fourth year. The [[leaf|leaves]] are compound, with a 2–4 cm petiole with three [[leaflet]]s, each 3-10 cm long and 2-6 cm broad, dark green above, bright glaucous blue-green beneath, with several blunt teeth on the margins. The [[flower]]s are [[plant sexuality|androdioecious]], produced in small [[corymb]]s in spring, the [[fruit]] being a paired [[samara (fruit)|samara]] with two winged [[seed]]s about 1 cm long with a 3 cm wing.<ref name=focd/><ref name=rushforth>Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.</ref>
  
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Paperbark Maple is widely grown as an [[ornamental plant]] in temperate regions.  It is admired for its decorative [[exfoliation (botany)|exfoliating]] bark, [[translucent]] pieces of which often stay attached to the branches until worn away. It also has spectacular autumn foliage which can include red, orange and pink tones.
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Recent attempts have been made to acquire new seed stock from wild populations in China because it is believed that the current gene pool of cultivated specimens is very small. [[Plant propagation|Propagation]] of ''Acer griseum'' is somewhat difficult as seeds have the same [[parthenocarpy|parthenocarpic]] tendencies as those of ''[[Acer maximowiczianum]]''.<ref name=gelderen>van Gelderen, C. J., & van Gelderen, D. M. (1999). ''Maples for Gardens: A Color Encyclopedia''.</ref>
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{{Inc|
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Acer griseum, Pax (A. nikoense var. griseum, Franch.). Tree, to 25 ft., with cinnamon-brown bark separating in thin flakes: branchlets pubescent: lfts. short-stalked, elliptic or ovate-oblong, 1-2 in. long, acute, coarsely toothed with large bluntish teeth, the lateral ones unequal, deeply dentate on the outer margin, entire or nearly so on the inner, glaucous and pubescent beneath; petioles densely hairy: fls. rather large, in few-fid, hairy corymbs: fr. pendulous on short stalks, with the peduncle scarcely 1/2in. long; nutlets thick, tomentose; wings spreading at an acute angle. W. China.—Remarkable for its flaky bark, resembling that of the river birch; hardy at the Arnold Arboretum.
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:''More information about this species can be found on the [[Acer|genus page]].''
 
:''More information about this species can be found on the [[Acer|genus page]].''
  
 
==Cultivation==
 
==Cultivation==
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==Cultivars==
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==Varieties==
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==Gallery==
 
==Gallery==
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<gallery>
 
<gallery>
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Image:Upload.png| photo 1
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Paperbark Maple Acer griseum Bark 3008px.jpg| photo 1
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Image:Upload.png| photo 2
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File:Acer griseum3.jpg| photo 2
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Image:Upload.png| photo 3
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Paperbark Maple Acer griseum Brown Seeds 2000px.jpg| photo 3
 
</gallery>
 
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__NOTOC__

Latest revision as of 17:48, 17 September 2010


Acer griseum Morton 836-58-7.jpg


Plant Characteristics
Habit   tree

Height: ⇕ 40 ft"ft" can not be assigned to a declared number type with value 40.
Width: ⇔ 35 ft"ft" can not be assigned to a declared number type with value 35.
Lifespan: ⌛ perennial
Origin: ✈ China
Bloom: ❀ early spring, mid spring, late spring
Cultivation
Exposure: ☼ sun
Features: ✓ deciduous, flowers
Minimum Temp: ☃ -35°C-31 °F <br />238.15 K <br />428.67 °R <br />
USDA Zones: 4 to 8
Sunset Zones: 2-9, 14-21, 31-41
Scientific Names

Aceraceae >

Acer >

griseum >


Acer griseum (Paperbark Maple; Template:Zh) is a species of maple native to central China, in the provinces of Gansu, Henan, Hubei, Hunan, Shaanxi, Shanxi, and Sichuan, at altitudes of 1,500–2,000 m.[1]

It is a small to medium-sized deciduous tree, reaching 6-9 m (20-30 ft) tall, 5-6 m (15-25 ft) wide, with a trunk up to 70 cm (2 ft) diameter.[2] The bark is smooth, shiny orange-red, peeling in thin, papery layers; it may become fissured in old trees. The shoots are densely downy at first, this wearing off by the second or third year and the bark exfoliating by the third or fourth year. The leaves are compound, with a 2–4 cm petiole with three leaflets, each 3-10 cm long and 2-6 cm broad, dark green above, bright glaucous blue-green beneath, with several blunt teeth on the margins. The flowers are androdioecious, produced in small corymbs in spring, the fruit being a paired samara with two winged seeds about 1 cm long with a 3 cm wing.[1][3]

Paperbark Maple is widely grown as an ornamental plant in temperate regions. It is admired for its decorative exfoliating bark, translucent pieces of which often stay attached to the branches until worn away. It also has spectacular autumn foliage which can include red, orange and pink tones.

Recent attempts have been made to acquire new seed stock from wild populations in China because it is believed that the current gene pool of cultivated specimens is very small. Propagation of Acer griseum is somewhat difficult as seeds have the same parthenocarpic tendencies as those of Acer maximowiczianum.[4]


Read about Paperbark Maple in the Standard Cyclopedia of Horticulture 

Acer griseum, Pax (A. nikoense var. griseum, Franch.). Tree, to 25 ft., with cinnamon-brown bark separating in thin flakes: branchlets pubescent: lfts. short-stalked, elliptic or ovate-oblong, 1-2 in. long, acute, coarsely toothed with large bluntish teeth, the lateral ones unequal, deeply dentate on the outer margin, entire or nearly so on the inner, glaucous and pubescent beneath; petioles densely hairy: fls. rather large, in few-fid, hairy corymbs: fr. pendulous on short stalks, with the peduncle scarcely 1/2in. long; nutlets thick, tomentose; wings spreading at an acute angle. W. China.—Remarkable for its flaky bark, resembling that of the river birch; hardy at the Arnold Arboretum.


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


More information about this species can be found on the genus page.

Cultivation

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Propagation

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Pests and diseases

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Varieties

Gallery

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  • photo 1

  • photo 2

  • photo 3

References

External links


  1. ↑ 1.0 1.1 Flora of China (draft): Acer griseum
  2. ↑ http://www.maple-trees.com/pages/paperbark-maple.php
  3. ↑ Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
  4. ↑ van Gelderen, C. J., & van Gelderen, D. M. (1999). Maples for Gardens: A Color Encyclopedia.
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