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Picea abies, the Norway spruce,[3] is a species of spruce native to Northern, Central and Eastern Europe.[4] It has branchlets that typically hang downwards, and the largest cones of any spruce, 9–17 cm (3 1⁄2–6 3⁄4 in) long. It is very closely related to the Siberian spruce
Siberian spruce
(Picea obovata), which replaces it east of the Ural Mountains, and with which it hybridises freely. The Norway spruce is widely planted for its wood, and is the species used as the main Christmas tree
Christmas tree
in several cities around the world. It was the first gymnosperm to have its genome sequenced, and one clone has been measured as 9,550 years old.

Contents

1 Description 2 Range and ecology 3 Cultivation 4 Longevity 5 Genetics 6 Chemistry 7 Research 8 Taxonomy

8.1 Synonyms 8.2 Cultivars

9 See also 10 References 11 External links

Description[edit]

An 1885 illustration of P. abies, showing the cones and leaves.

Norway spruce is a large, fast-growing evergreen coniferous tree growing 35–55 m (115–180 ft) tall and with a trunk diameter of 1 to 1.5 m (39 to 59 in). It can grow fast when young, up to 1 m (3 ft) per year for the first 25 years under good conditions, but becomes slower once over 20 m (65 ft) tall.[5] The shoots are orange-brown and glabrous (hairless). The leaves are needle-like with blunt tips,[6] 12–24 mm (15⁄32–15⁄16 in) long, quadrangular in cross-section (not flattened), and dark green on all four sides with inconspicuous stomatal lines. The seed cones are 9–17 cm (3 1⁄2–6 3⁄4 in) long (the longest of any spruce), and have bluntly to sharply triangular-pointed scale tips. They are green or reddish, maturing brown 5–7 months after pollination. The seeds are black, 4–5 mm (5⁄32–3⁄16 in) long, with a pale brown 15-millimetre (5⁄8-inch) wing.[1][7][8][9][10] The tallest measured Norway spruce is 62.26 m (204 ft) tall and grows near Ribnica na Pohorju, Slovenia.[11] Range and ecology[edit] The Norway spruce grows throughout Europe
Europe
from Norway in the northwest and Poland eastward, and also in the mountains of central Europe, southwest to the western end of the Alps, and southeast in the Carpathians and Balkans to the extreme north of Greece. The northern limit is in the arctic, just north of 70° N in Norway. Its eastern limit in Russia is hard to define, due to extensive hybridisation and intergradation with the Siberian spruce, but is usually given as the Ural Mountains. However, trees showing some Siberian spruce
Siberian spruce
characters extend as far west as much of northern Finland, with a few records in northeast Norway. The hybrid is known as Picea × fennica (or P. abies subsp. fennica, if the two taxa are considered subspecies), and can be distinguished by a tendency towards having hairy shoots and cones with smoothly rounded scales.[7][8][9] Norway spruce cone scales are used as food by the caterpillars of the tortrix moth Cydia illutana, whereas Cydia duplicana
Cydia duplicana
feeds on the bark around injuries or canker. Cultivation[edit]

The Trafalgar Square Christmas tree
Christmas tree
in 2008. Given to London
London
every year as a gift from Norway's capital city, Oslo, Norway spruces that are around 50 to 60 years old are typically used.

The Norway spruce is one of the most widely planted spruces, both in and outside of its native range, and one of the most economically important coniferous species in Europe.[12] It is used as an ornamental tree in parks and gardens. It is also widely planted for use as a Christmas tree. Every Christmas, the Norwegian capital city, Oslo, provides the cities of London
London
(the Trafalgar Square Christmas tree), Edinburgh and Washington D.C. with a Norway spruce, which is placed at the most central square of each city. This is mainly a sign of gratitude for the aid these countries gave during the Second World War.[13] In North America, Norway spruce is widely planted, specifically in the northeastern, Pacific Coast, and Rocky Mountain states, as well as in southeastern Canada. It is naturalised in some parts of North America. There are naturalised populations occurring from Connecticut
Connecticut
to Michigan, and it is probable that they occur elsewhere.[12] Norway spruces are more tolerant of hot, humid weather than many conifers which do not thrive except in cool-summer areas and they will grow up to USDA Growing Zone 8. In the northern US and Canada, Norway spruce is reported as invasive in some locations, however it does not pose a problem in Zones 6 and up as the seeds have a significantly reduced germination rate in areas with hot, humid summers. The Norway spruce tolerates acidic soils well, but does not do well on dry or deficient soils. From 1928 until the 1960s it was planted on surface mine spoils in Indiana.[12] The Norway spruce is used in forestry for (softwood) timber,[14] and paper production. The tree is the source of spruce beer, which was once used to prevent and even cure scurvy.[15] This high vitamin C content can be consumed as a tea from the shoot tips or even eaten straight from the tree when light green and new in spring. It is esteemed as a source of tonewood by stringed-instrument makers.[16] One form of the tree is called Haselfichte (de) (Hazel-spruce) which grows in the European Alps and has been recognized by UNESCO as intangible cultural heritage. This form was used by Stradivarius for instruments.[17] (see German for details). Norway spruce shoot tips have been used in traditional Austrian medicine internally (as syrup or tea) and externally (as baths, for inhalation, as ointments, as resin application or as tea) for treatment of disorders of the respiratory tract, skin, locomotor system, gastrointestinal tract and infections.[18] Longevity[edit]

Old Tjikko

A press release from Umeå University
Umeå University
says that a Norway spruce clone named Old Tjikko, carbon dated as 9,550 years old, is the "oldest living tree".[19] However, Pando, a stand of 47,000 quaking aspen clones, is estimated to be between 80,000 and one million years old.[20][21][22] The stress is on the difference between the singular "oldest tree" and the multiple "oldest trees", and between "oldest clone" and "oldest non-clone". The oldest known individual tree (that has not taken advantage of vegetative cloning) is a Great Basin bristlecone pine over 5,000 years old (germination in 3051 BC).[23] Genetics[edit] The genome of Picea abies
Picea abies
was sequenced in 2013, the first gymnosperm genome to be completely sequenced.[24] The genome contains approximately 20 billion base pairs and is about six times the size of the human genome, despite possessing a similar number of genes. A large proportion of the spruce genome consists of repetitive DNA sequences, including long terminal repeat transposable elements. Despite recent advances in massively parallel DNA sequencing, the assembly of such a large and repetitive genome is a particularly challenging task, mainly from a computational perspective.[25] Within populations of Picea abies
Picea abies
there is great genetic variability, which most likely reflect populations' post-glacial evolutionary history. Genetic diversity can in particular be detected when looking at how the populations respond to climatic conditions. E.g. variations in timing and length of the annual growth period as well as differences in frost-hardiness in spring and autumn. These annual growth patterns are important to recognise in order to choose the proper reforestation material of Picea abies.[26] Chemistry[edit] p-Hydroxybenzoic acid glucoside, picein, piceatannol and its glucoside (astringin), isorhapontin (the isorhapontigenin glucoside), catechin and ferulic acid are phenolic compounds found in mycorrhizal and non-mycorrhizal roots of Norway spruces.[27] Piceol[28] and astringin[29] are also found in P. abies. Research[edit] Extracts from Picea abies
Picea abies
have shown inhibitory activity on porcine pancreatic lipase in vitro.[30] Taxonomy[edit]

Cones of P. obovata and Picea abies

Cones of P. obovata are short and have rounded scales.

Cones of P. abies are longer and have pointed scales.

Populations in southeast Europe
Europe
tend to have on average longer cones with more pointed scales; these are sometimes distinguished as Picea abies var. acuminata (Beck) Dallim. & A.B. Jacks., but there is extensive overlap in variation with trees from other parts of the range.[7][8][9] Some botanists treat Siberian spruce
Siberian spruce
as a subspecies of Norway spruce, though in their typical forms, they are very distinct, the Siberian spruce having cones only 5–10 cm long, with smoothly rounded scales, and pubescent (hairy) shoots.[7][8][9] Genetically
Genetically
Norway and Siberian spruces have turned out to be extremely similar and may be considered as two closely related subspecies of P. abies.[31] Another spruce with smoothly rounded cone scales and hairy shoots occurs rarely in the Central Alps in eastern Switzerland. It is also distinct in having thicker, blue-green leaves. Many texts treat this as a variant of Norway spruce, but it is as distinct as many other spruces, and appears to be more closely related to Siberian spruce (Picea obovata), Schrenk's spruce (Picea schrenkiana) from central Asia
Asia
and Morinda spruce (Picea smithiana) in the Himalaya. Treated as a distinct species, it takes the name Alpine spruce (Picea alpestris (Brügger) Stein). As with Siberian spruce, it hybridises extensively with Norway spruce; pure specimens are rare. Hybrids are commonly known as Norwegian spruce, which should not be confused with the pure species Norway spruce.[7][8][9] Synonyms[edit] Picea abies
Picea abies
(L.) H. Karst is the accepted name of this species. More than 150 synonyms of Picea abies
Picea abies
have been published.[32] Homotypic synonyms of Picea abies
Picea abies
are:[33]

Pinus abies L. Abies picea Mill. Pinus pyramidalis Salisb. Pinus abies subsp. vulgaris Voss Abies abies (L.) Druce

Some heterotypic synonyms of Picea abies
Picea abies
are:

Abies alpestris Brügger Abies carpatica (Loudon) Ravenscr. Abies cinerea Borkh. Abies clambrasiliana Lavallée Abies clanbrassiliana P. Lawson Abies coerulescens K. Koch Abies conica Lavallée Abies elegans Sm. ex J.Knight Abies eremita K.Koch Abies erythrocarpa (Purk.) Nyman Abies excelsa (Lam.) Poir. Abies extrema Th.Fr. Abies finedonensis Gordon Abies gigantea Sm. ex Carrière Abies gregoryana H. Low. ex Gordon Abies inverta R. Sm. ex Gordon Abies lemoniana Booth ex Gordon Abies medioxima C.Lawson Abies minuta Poir. Abies montana Nyman Abies parvula Knight Abies subarctica (Schur) Nyman Abies viminalis Wahlenb. Picea alpestris
Picea alpestris
(Brügger) Stein Picea cranstonii Beissn. Picea elegantissima Beissn. Picea excelsa (Lam.) Link Picea finedonensis Beissn. Picea gregoryana Beissn. Picea integrisquamis (Carrière) Chiov. Picea maxwellii Beissn. Picea montana Schur Picea remontii Beissn. Picea rubra A. Dietr. Picea subarctica Schur Picea velebitica Simonk. ex Kümmerle Picea viminalis (Alstr.) Beissn. Picea vulgaris Link Pinus excelsa Lam. Pinus sativa Lam. Pinus viminalis Alstr.

Cultivars[edit]

Picea abies
Picea abies
'Inversa'

Picea abies
Picea abies
'Virgata'

Several cultivars have been selected for garden use (‘Barrya’, ‘Capitata’, ‘Decumbens’, ‘Dumosa’, ‘Clanbrassiliana’, ‘Gregoryana’, ‘Inversa’, ‘Microsperma’, ‘Nidiformis’, ‘Ohlendorffii’, ‘Repens’, ‘Tabuliformis’, ‘Maxwellii’, 'Virgata', 'Inversa' и ‘Pendula’); they are occasionally traded under the obsolete scientific name Picea excelsa (an illegitimate name). The following cultivars have gained the Royal Horticultural Society's Award of Garden
Garden
Merit:

'Little gem'[34] 'Nidiformis'[35]

See also[edit]

Norway pine List of Lepidoptera that feed on spruces

References[edit]

^ a b Farjon, A. (2011). "Picea abies". IUCN Red List
IUCN Red List
of Threatened Species. Version 2014.3. International Union for Conservation of Nature. Retrieved 3 December 2014.  ^ Farjon, A. 2017. Picea abies. The IUCN Red List
IUCN Red List
of Threatened Species 2017: e.T42318A71233492. https://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T42318A71233492.en. Downloaded on 20 February 2018. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.  ^ " Picea abies
Picea abies
(Norway spruce) description". Conifers.org. Retrieved 2017-01-08.  ^ Mitchell, A.F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins ISBN 0-00-212035-6 ^ Taylor, Ronald J. "Picea abies". Flora of North America (FNA). Missouri Botanical Garden. 2 – via eFloras.org.  ^ a b c d e Farjon, A. (1990). Pinaceae. Drawings and Descriptions of the Genera. Koeltz Scientific Books ISBN 3-87429-298-3. ^ a b c d e Rushforth, K. (1987). Conifers. Helm ISBN 0-7470-2801-X. ^ a b c d e Gymnosperm
Gymnosperm
Database: Picea abies ^ Den Virtuella Floran: Picea abies
Picea abies
distribution (in Swedish, with maps) ^ " Picea abies
Picea abies
records". Monumental trees.  ^ a b c Sullivan, Janet (1994). "Picea abies". Fire Effects Information System. United States Forest Service. Retrieved 18 November 2009.  ^ British Embassy Oslo. "Oslo's Christmas tree
Christmas tree
gift to Trafalgar Square". GOV.UK. Retrieved 28 June 2015.  ^ Buckley, Michael (2005). "A basic guide to softwoods and hardwoods" (PDF). worldhardwoods.com. Retrieved 1 October 2017.  ^ Karellp. "New Beer – Spruce
Spruce
Beer". The Black Creek Growler. Retrieved 30 September 2012.  ^ Paul Hostetter. "European spruce ranges, and commentary on Picea spp". Lutherie.net. Retrieved 2017-01-08.  ^ "Die Haselfichte". Waldwissen.net. 2012-06-20. Archived from the original on 2017-01-19. Retrieved 2017-01-08.  ^ Vogl, S.; Picker, P.; Mihaly-Bison, J.; Fakhrudin, N.; Atanasov, A.G.; Heiss, E.H.; Wawrosch, C.; Reznicek, G.; Dirsch, V.M.; Saukel, J.; Kopp, B. (7 October 2013). "Ethnopharmacological in vitro studies on Austria's folk medicine – an unexplored lore. In vitro anti-inflammatory activities of 71 Austrian traditional herbal drugs". Journal of Ethnopharmacology. 149 (3): 750–771. doi:10.1016/j.jep.2013.06.007. PMC 3791396 . PMID 23770053.  ^ "World's oldest living tree discovered in Sweden". Umeå University. April 16, 2008. Retrieved 26 May 2013.  ^ Quaking Aspen by the Bryce Canyon
Bryce Canyon
National Park
Park
Service ^ Mitton, J.B.; Grant, M.C. (1996). "Genetic variation and the natural history of quaking aspen". BioScience. 46 (1): 25–31. doi:10.2307/1312652. JSTOR 1312652.  ^ Swedish Spruce
Spruce
Is World's Oldest Tree: Scientific American Podcast ^ "Old List". Rocky Mountain Tree-Ring Research. Retrieved 16 August 2013.  ^ Nystedt, B.; Street, N.R.; Wetterbom, A.; Zuccolo, A.; Lin, Y.C.; Scofield, D.G.; Vezzi, F.; Delhomme, N.; Giacomello, S.; Alexeyenko, A.; et al. (30 May 2013). "The Norway spruce genome sequence and conifer genome evolution". Nature. 497 (7451): 579–584. doi:10.1038/nature12211. PMID 23698360.  ^ Birol, I.; Raymond, A.; Jackman, S.D.; Pleasance, S.; Coope, R.; Taylor, G.A.; Yuen, M.M.; Keeling, C.I.; Brand, D.; Vandervalk, B.P.; et al. (2013). "Assembling the 20 Gb white spruce (Picea glauca) genome from whole-genome shotgun sequencing data". Bioinformatics. 29 (12): 1492–1497. doi:10.1093/bioinformatics/btt178. PMC 3673215 . PMID 23698863.  ^ Skrøppa, T. (2003). " Picea abies
Picea abies
- Norway spruce" (PDF). EUFORGEN; Technical guidelines for genetic conservation and use.  ^ Münzenberger, B.; Heilemann, J.; Strack, D.; Kottke, I.; Oberwinkler, F. (1990). "Phenolics of mycorrhizas and non-mycorrhizal roots of Norway spruce". Planta. 182 (1): 142–148. doi:10.1007/BF00239996. PMID 24197010.  ^ Løkke, Hans (June 1990). " Picein
Picein
and piceol concentrations in Norway spruce". Ecotoxicology and Environmental Safety. 19 (3): 301–309. doi:10.1016/0147-6513(90)90032-Z. PMID 2364913.  ^ Lindberg, M.; Lundgren, L.; Gref, R.; Johansson, M. (1 May 1992). "Stilbenes and resin acids in relation to the penetration of Heterobasidion annosum through the bark of Picea abies". Forest Pathology. 22 (2): 95–106. doi:10.1111/j.1439-0329.1992.tb01436.x.  ^ "Screening of selected food and medicinal plant extracts for pancreatic lipase inhibition". Phytotherapy Research. 23: 874–877. doi:10.1002/ptr.2718. Retrieved 2017-01-08.  ^ Krutovskii, Konstantin V.; Bergmann, Fritz (1995). "Introgressive hybridization and phylogenetic relationships between Norway, Picea abies (L.) Karst., and Siberian, P. obovata Ledeb., spruce species studied by isozyme loci". Heredity. 74 (5): 464–480. doi:10.1038/hdy.1995.67.  ^ " Picea abies
Picea abies
(L.) H. Karst". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew. Retrieved 14 March 2014 – via The Plant
Plant
List.  ^ " Picea abies
Picea abies
(L.) H.Karst., Deut. Fl.: 325 (1881). Homotypic Synonyms". World Checklist of Selected Plant
Plant
Families. Retrieved 14 March 2014.  ^ "RHS Plant
Plant
Selector – Picea abies
Picea abies
'Little Gem'". Retrieved 26 May 2013.  ^ "RHS Plant
Plant
Selector – Picea abies
Picea abies
'Nidiformis'". Retrieved 26 May 2013. 

External links[edit]

Wikimedia Commons has media related to Picea abies.

Wikispecies
Wikispecies
has information related to Picea abies

Spruce
Spruce
Genome Project at Congenie.org Picea abies
Picea abies
- distribution map, genetic conservation units and related resources. European Forest Genetic Resources Programme (EUFORGEN)

Taxon identifiers

Wd: Q145992 BioLib: 2371 EoL: 1061648 EPPO: PIEAB FNA: 200005295 FoC: 200005295 GBIF: 5284884 GRIN: 28264 iNaturalist: 63567 IPNI: 262609-1 ITIS: 183289 IUCN: 42318 NCBI: 3329 PalDat: Picea_abies Plant
Plant
List: kew-2562738 PLANTS: PIAB Tropicos: 24900164 VASCAN:

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