Ornäs birch: Difference between revisions

*Betula pendula* 'Dalecarlica'
Betula pendula 'Dalecarlica'
	Ornäs Birch in Örebro
Species	Betula pendula
Cultivar	'Dalecarlica'
Origin	Sweden

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The Ornäs birch, (Swedish Ornäsbjörk, Latin Betula pendula 'Dalecarlica') is a variety of silver birch with deeply indented leaves. It is the national tree of Sweden.

History

The original Ornäs birch was discovered in 1767 by Hans Gustaf Hiordt in the village of Ornäs, in the central Swedish province of Dalarna. Hiordt sent a description of the tree to the University of Uppsala botanist Carl Linnaeus. Cuttings were taken from the original tree, from which all Ornäs birch trees have been propagated. The tree fell in a storm on 26 May 1890. Two new trees were planted in its place, taken from cuttings of the original tree. At a later time a third one was added. The location of the trees is 60°31′15″N 15°32′35.5″E / 60.52083°N 15.543194°E / 60.52083; 15.543194

In 1985, the Ornäs birch was named as the national tree of Sweden,^[1] and examples have been planted in central locations in many Swedish towns.

In that same year, the first eight Betula pendula 'Dalecarlica' were imported to Pretoria, South Africa, from a nursery in Germany, by an avid tree lover, Karl Ernst Haese.

Description

Ornäs birch trees grow to a height of 20–25 metres (66–82 ft), and have a rounded, somewhat uneven crown. The main branches have an acute angle to the trunk, and only the outermost branches are hanging. The Ornäs birch is often confused with the similar birches Betula pendula 'Crispa' and Betula pendula 'Laciniata', and all three varieties are sometimes sold commercially as "Swedish birch". The genuine Ornäs birch can be distinguished by its growth-form, and in that its leaves are more deeply indented than the other varieties. Male and female flowers are present, and the Ornäs birch can be propagated from seed, cuttings, or grafting onto normal Betula pendula rootstock.

References

^ Gronarader.se. Äkta ornäsbjörk är E-märkt.

eplanta.com (Swedish)
ornasbjorken.se (Swedish)
gronarader.se (Swedish)

[1] Gronarader.se. Äkta ornäsbjörk är E-märkt.

[1]

@@ Line 1: / Line 1: @@
+{{short description|Species of tree}}
 {{Infobox cultivar
 | name = ''Betula pendula'' 'Dalecarlica'
 | image = Riksträdet i Örebro.jpg
-| image_caption = Ornäs Birch in Örebro, Sweden
+| image_caption = Ornäs Birch in Örebro
 | species = ''[[Betula pendula]]''
 | cultivar = 'Dalecarlica'
 | origin = Sweden
 }}
-[[File:Ornäsbjörklöv.jpg|thumb|Ornäs Birch leaves.]]
+[[File:Ornäsbjörklöv.jpg|thumb|180px|Ornäs birch leaves]]
+[[File:Male and female catkins dalecarlica 2018.jpg|thumb|180px|Male catkins]]
 The '''Ornäs birch''', ([[Swedish language|Swedish]] ''Ornäsbjörk'', [[Latin]] ''Betula pendula'' 'Dalecarlica') is a variety of [[silver birch]] with deeply indented [[leaf|leaves]]. It is the [[List of national trees|national tree]] of [[Sweden]].
 ==History==
-The original Ornäs birch was discovered in 1767 by Hans Gustaf Hiordt in the municipality of [[Ornäs]], in the central Swedish [[Provinces of Sweden|province]] of [[Dalarna]]. Hiordt sent a description of the tree to the renowned [[botanist]] [[Carl Linnaeus]] in the Swedish [[Uppsala University|university]] city of [[Uppsala]]. Cuttings were taken from the original tree, from which all Ornäs birch trees have been [[vegetative propagation|propagated]]. In 1985, the Ornäs birch was named as the national tree of Sweden, and examples have been planted in central locations in many Swedish towns.
+The original Ornäs birch was discovered in 1767 by Hans Gustaf Hiordt in the village of [[Ornäs]], in the central Swedish province of [[Dalarna]]. Hiordt sent a description of the tree to the [[University of Uppsala]] botanist [[Carl Linnaeus]]. Cuttings were taken from the original tree, from which all Ornäs birch trees have been [[vegetative propagation|propagated]]. The tree fell in a storm on 26 May 1890. Two new trees were planted in its place, taken from cuttings of the original tree. At a later time a third one was added. The location of the trees is {{coord|60|31|15|N|15|32|35.5|E}}
+In 1985, the Ornäs birch was named as the national tree of Sweden,<ref>[https://gronarader.se/tradgard/ornasbjork/ Gronarader.se. ''Äkta ornäsbjörk är E-märkt.'']</ref> and examples have been planted in central locations in many Swedish towns.
+In that same year, the first eight ''Betula pendula'' 'Dalecarlica' were imported to Pretoria, South Africa, from a nursery in Germany, by an avid tree lover, Karl Ernst Haese.
 ==Description==
-Ornäs birch trees grow to a height of 20–25 metres, and have a rounded, somewhat uneven crown. The main branches have an acute angle to the trunk, and only the outermost branches are hanging. The Ornäs birch is often confused with the similar birches ''Betula pendula'' 'Crispa' and ''Betula pendula'' 'Laciniata', and all three varieties are sometimes sold commercially as "Swedish birch". The genuine Ornäs birch can be distinguished by its growth-form, and in that its leaves are more deeply indented than the other varieties.
+Ornäs birch trees grow to a height of {{convert|20|–|25|metre}}, and have a rounded, somewhat uneven crown. The main branches have an acute angle to the trunk, and only the outermost branches are hanging. The Ornäs birch is often confused with the similar birches ''Betula pendula'' 'Crispa' and ''Betula pendula'' 'Laciniata', and all three varieties are sometimes sold commercially as "Swedish birch". The genuine Ornäs birch can be distinguished by its growth-form, and in that its leaves are more deeply indented than the other varieties.
-Male flowers are absent, so the Ornäs birch can only be propagated from cuttings. Female flowers are present however, so [[hybrid (biology)|hybrids]] can be produced by [[pollination|cross-pollination]].
+Male and female flowers are present, and the Ornäs birch can be propagated from seed, cuttings, or grafting onto normal Betula pendula rootstock.
 ==See also==
@@ Line 22: / Line 28: @@
 ==References==
+{{Reflist}}
 * [http://www.eplanta.com/Index.asp?pagenr=67&group=3/ eplanta.com] (Swedish)
 * [http://www.ornasbjorken.se ornasbjorken.se] (Swedish)
 * [http://gronarader.se/tradgard/ornasbjork/ gronarader.se] (Swedish)
-{{taxonbar}}
 {{DEFAULTSORT:Ornas birch}}
-[[Category:National symbols of Sweden]]
 [[Category:Betula]]
+[[Category:National symbols of Sweden]]
 [[Category:Ornamental plant cultivars]]