Difference between revisions of "Wild Service Tree"

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|genus=Sorbus
 
|genus=Sorbus
 
|species=torminalis
 
|species=torminalis
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|taxo_author=(L.) Crantz
 
|common_name=Wild Service Tree, Chequer tree
 
|common_name=Wild Service Tree, Chequer tree
 
|name_ref=Flora - A Gardener's Encyclopedia
 
|name_ref=Flora - A Gardener's Encyclopedia
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|features=deciduous, flowers, edible, fruit
 
|flower_season=early spring, mid spring, late spring
 
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|flower_ref=Flora - A Gardener's Encyclopedia
 
|flower_ref=Flora - A Gardener's Encyclopedia
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|image=Sorbus torminalis Full tree.jpg
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|image_caption=A mature Wild Service tree in spring
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'''''Sorbus torminalis''''' ([[syn.]] ''Torminalis clusii'', '''Wild Service Tree'''), sometimes known as the '''Chequer(s) Tree''' or '''Checker(s) Tree''', is a species of ''[[Sorbus]]'' native to [[Europe]] from [[England]] and [[Wales]] east to [[Denmark]] and [[Poland]], south to northwest [[Africa]], and southeast to southwest [[Asia]] from [[Asia Minor]] to the [[Caucasus]] and [[Alborz]] mountains.<ref name=rushforth>Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.</ref><ref name=empp>Euro+Med Plantbase Project: [http://ww2.bgbm.org/_EuroPlusMed/PTaxonDetail.asp?NameId=29551&PTRefFk=500000 ''Sorbus torminalis'']</ref>
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[[Image:Sorbus torminalis Trunk and canopy.jpg|thumb|left|Trunk and leaf canopy]]
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It is a medium-sized [[deciduous]] [[tree]] growing to 15–25 m tall, with a trunk up to 1.3 m diameter. The [[bark]] is smooth and greyish, but flaky, peeling away in squarish plates to reveal darker brown layers. The [[leaf|leaves]] are 6–14 cm long and broad with a 2.5–5 cm petiole, dark green on both sides, with five to nine acute lobes; the basal pair of lobes are spreading, the rest more forward-pointing and decreasing in size to the leaf apex, and with finely toothed margins. The undersides have small hairs when young, but both sides are smooth and shiny when older; the autumn colour is yellow to red-brown. The [[flower]]s are 10–15 mm diameter, with five white petals and 20 creamy-white stamens; they are produced in [[corymb]]s 5–12 cm diameter in late spring to early summer, and are [[plant sexuality|hermaphrodite]] and insect pollinated. The [[fruit]] is a globose to ovoid [[pome]] 10–15 mm diameter, greenish to russet or brown, patterned with small pale [[lenticel]] spots when mature in mid to late autumn.<ref name=rushforth/><ref name=afm>Mitchell, A. F. (1974). ''A Field Guide to the Trees of Britain and Northern Europe''. Collins ISBN 0-00-212035-6</ref><ref name=blamey>Blamey, M. & Grey-Wilson, C. (1989). ''Flora of Britain and Northern Europe''. ISBN 0-340-40170-2</ref><ref name=cu>Cambridge University: [http://www-saps.plantsci.cam.ac.uk/trees/service.htm plantsci.cam.ac.uk ''Sorbus torminalis'']</ref>
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The fruit, sometimes called "chequers", are edible and taste similar to [[Date Palm|dates]], although they are now rarely collected for food. They are usually too [[astringent]] to eat until they are over-ripe and [[bletting|bletted]].
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Sorbus torminalis, Crantz (Pyrus torminalis, Ehrh. Torminaria torminalis, Dipp. T. Clusii, Roem.). Wild Service Tree. Round-headed tree, with spreading branches, 40-80 ft. high: lvs. broadly ovate, slightly cordate to broadly cuneate at the base, with several triangular-ovate, serrate lobes on each side, the lower sinuses reaching about half-way to the middle, floccose-tomentose when young, finally glabrous, rarely with persistent tomentum, 2-4 in. long; petioles 1-1 3/4 in. long: fls. white, 1/2 in. across, in broad, rather loose tomentose corymbs: fr. oval, 1/2 – 3/4 in. high, brown, dotted. May, June. S. and Cent. Eu.—The foliage turns bright red in autumn.
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Sorbus torminalis, Crantz (Pyrus torminalis, Ehrh. Torminaria torminalis, Dipp. T. Clusii, Roem.). Wild Service Tree. Round-headed tree, with spreading branches, 40-80 ft. high: lvs. broadly ovate, slightly cordate to broadly cuneate at the base, with several triangular-ovate, serrate lobes on each side, the lower sinuses reaching about half-way to the middle, floccose-tomentose when young, finally glabrous, rarely with persistent tomentum, 2-4 in. long; petioles 1-1 3/4 in. long: fls. white, 1/2 in. across, in broad, rather loose tomentose corymbs: fr. oval, 1/2 – 3/4 in. high, brown, dotted. May, June. S. and Cent. Eu. H.W. 3:53, pp. 82, 83.—The foliage turns bright red in autumn.
 
 
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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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==Varieties==
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There are two [[variety (botany)|varieties]]:<ref name=rushforth/>
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*''Sorbus torminalis'' var. ''torminalis''. Europe, northwest Africa.
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*''Sorbus torminalis'' var. ''caucasica''. Caucasus and Alborz Mountains. Leaves less deeply lobed than in var. ''torminalis''.
  
 
==Gallery==
 
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Image:Upload.png| photo 1
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Image:Sorbus torminalis Weinsberg 20070929 5.jpg|Foliage and fruit
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Image:Sorbus torminalis leaves kz.jpg|Leaves
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Image:Alisier torminal.jpg|Flowers
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Image:ElsbeerFrucht.jpeg|Foliage and fruit
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Image:Sorbus torminalis Weinsberg 20070929 8.jpg|Autumn leaf colour
 
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==References==
 
==References==
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*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
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<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
 
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<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
 
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
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Latest revision as of 23:48, 7 June 2010


A mature Wild Service tree in spring


Plant Characteristics
Habit   tree

Height: ⇕ 30 ft"ft" can not be assigned to a declared number type with value 30. to 50 ft"ft" can not be assigned to a declared number type with value 50.
Width: ⇔ 25 ft"ft" can not be assigned to a declared number type with value 25.
Lifespan: ⌛ perennial
Bloom: ❀ early spring, mid spring, late spring
Cultivation
Exposure: ☼ sun
Features: ✓ deciduous, flowers, edible, fruit
USDA Zones: 6 to 10
Scientific Names

Rosaceae >

Sorbus >

torminalis >

(L.) Crantz >


Sorbus torminalis (syn. Torminalis clusii, Wild Service Tree), sometimes known as the Chequer(s) Tree or Checker(s) Tree, is a species of Sorbus native to Europe from England and Wales east to Denmark and Poland, south to northwest Africa, and southeast to southwest Asia from Asia Minor to the Caucasus and Alborz mountains.[1][2]

Trunk and leaf canopy

It is a medium-sized deciduous tree growing to 15–25 m tall, with a trunk up to 1.3 m diameter. The bark is smooth and greyish, but flaky, peeling away in squarish plates to reveal darker brown layers. The leaves are 6–14 cm long and broad with a 2.5–5 cm petiole, dark green on both sides, with five to nine acute lobes; the basal pair of lobes are spreading, the rest more forward-pointing and decreasing in size to the leaf apex, and with finely toothed margins. The undersides have small hairs when young, but both sides are smooth and shiny when older; the autumn colour is yellow to red-brown. The flowers are 10–15 mm diameter, with five white petals and 20 creamy-white stamens; they are produced in corymbs 5–12 cm diameter in late spring to early summer, and are hermaphrodite and insect pollinated. The fruit is a globose to ovoid pome 10–15 mm diameter, greenish to russet or brown, patterned with small pale lenticel spots when mature in mid to late autumn.[1][3][4][5]

The fruit, sometimes called "chequers", are edible and taste similar to dates, although they are now rarely collected for food. They are usually too astringent to eat until they are over-ripe and bletted.


Read about Wild Service Tree in the Standard Cyclopedia of Horticulture 

Sorbus torminalis, Crantz (Pyrus torminalis, Ehrh. Torminaria torminalis, Dipp. T. Clusii, Roem.). Wild Service Tree. Round-headed tree, with spreading branches, 40-80 ft. high: lvs. broadly ovate, slightly cordate to broadly cuneate at the base, with several triangular-ovate, serrate lobes on each side, the lower sinuses reaching about half-way to the middle, floccose-tomentose when young, finally glabrous, rarely with persistent tomentum, 2-4 in. long; petioles 1-1 3/4 in. long: fls. white, 1/2 in. across, in broad, rather loose tomentose corymbs: fr. oval, 1/2 – 3/4 in. high, brown, dotted. May, June. S. and Cent. Eu.—The foliage turns bright red in autumn. CH


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.


Cultivation

Propagation

Pests and diseases

Varieties

There are two varieties:[1]

  • Sorbus torminalis var. torminalis. Europe, northwest Africa.
  • Sorbus torminalis var. caucasica. Caucasus and Alborz Mountains. Leaves less deeply lobed than in var. torminalis.

Gallery

  • Foliage and fruit

  • Leaves

  • Flowers

  • Foliage and fruit

  • Autumn leaf colour

References

  1. ↑ 1.0 1.1 1.2 Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
  2. ↑ Euro+Med Plantbase Project: Sorbus torminalis
  3. ↑ Mitchell, A. F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins ISBN 0-00-212035-6
  4. ↑ Blamey, M. & Grey-Wilson, C. (1989). Flora of Britain and Northern Europe. ISBN 0-340-40170-2
  5. ↑ Cambridge University: plantsci.cam.ac.uk Sorbus torminalis

External links


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