Quercus petraea

Source: Wikipedia, the free encyclopedia.

Quercus petraea
A mature tree

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section:
Quercus sect. Quercus
Species:
Q. petraea
Binomial name
Quercus petraea
Subspecies

See text.

Distribution map
Synonyms[2]
List
  • Quercus robur var. petraea Matt.
  • Quercus brevipedunculata Cariot & St.-Lag.
  • Quercus calcarea Troitsky
  • Quercus columbaria Vuk.
  • Quercus coriacea Bechst.
  • Quercus coronensis Schur
  • Quercus decipiens Behlen
  • Quercus dispar Raf.
  • Quercus durinus Raf.
  • Quercus erythroneura Vuk.
  • Quercus esculus L.
  • Quercus longipetiolata Schur
  • Quercus mas Thore
  • Quercus mespilifolia Wallr.
  • Quercus peraffinis Gand.
  • Quercus petiolata Schur
  • Quercus regalis Burnett ex Endl.
  • Quercus sessiliflora Salisb.
  • Quercus sessilis Ehrh. ex Schur
  • Quercus spathulifolia Vuk.
  • Quercus sphaerocarpa Vuk.
  • Quercus sublobata Kit.
  • Quercus huguetiana (Franco & G.López) Rivas Mart.
  • Quercus colchica Czeczott
  • Quercus dshorochensis K.Koch
  • Quercus hypochrysa Steven
  • Quercus iberica Steven ex M.Bieb.
  • Quercus kochiana O.Schwarz
  • Quercus kozlowskyi Woronow ex Grossh.
  • Quercus lamprophyllos K.Koch
  • Quercus polycarpa Schur
  • Quercus sorocarpa Woronow ex Maleev
  • Quercus szowitzii Wenz.
  • Quercus abietum Kotschy ex A.DC.
  • Quercus cedrorum Kotschy
  • Quercus ibicis Kotschy ex A.DC.
  • Quercus pinnatiloba K.Koch
  • Quercus subalpina Kotschy ex A.DC.
  • Quercus tergestina Wenz.
  • plus a long list of invalid names and another long list of names below the species level

Quercus petraea, commonly known as the sessile oak,

native to most of Europe and into Anatolia and Iran. The sessile oak is the national tree of Ireland,[7] and an unofficial emblem in Wales[8] and Cornwall.[9][10]

Description

The sessile oak is a large

leaves are 7–14 centimetres (2+3⁄4–5+1⁄2 inches) long and 4–8 cm (1+1⁄2–3 in) broad, evenly lobed with five to six lobes on each side and a 1 cm-long (1⁄2 in) petiole. The male flowers are grouped into catkins, produced in the spring. The fruit is an acorn
2–3 cm (3⁄4–1+1⁄4 in) long and 1–2 cm (1⁄2–3⁄4 in) broad, which matures in about six months.

Comparison with pedunculate oak

Significant

pedunculate oak (Q. robur) include the stalked leaves, and the stalkless (sessile) acorns from which one of its common names is derived. (With the pedunculate oak, it is the acorns which are pedunculate, i.e. on stalks, while the leaves are not.) It occurs in upland areas of altitudes over 300 m (984 ft) with higher rainfall and shallow, acidic, sandy soils. Its specific epithet petraea means "of rocky places".[12] Q. robur, on the other hand, prefers deeper, richer soils at lower altitude. Fertile hybrids with Quercus robur named Quercus × rosacea are found wherever the two parent species occur and share or are intermediate in characters between the parents.[citation needed
]

Charles Darwin, in Chapter II of On the Origin of Species, noted that the sessile and pedunculate oaks had been described as both distinct species and mere varieties depending on the authority consulted.

Taxonomy

Quercus petraea was first described by Heinrich Gottfried von Mattuschka in 1777 as a variety of Quercus robur, Quercus robur var. petraea. It was raised to a full species by Franz Kaspar Lieblein in 1784.[13]

Subspecies

As of March 2023, Plants of the World Online accepted five subspecies:[13]

  • Quercus petraea subsp. austrotyrrhenica Brullo, Guarino & Siracusa
  • Quercus petraea subsp. huguetiana Franco & G.López
  • Quercus petraea subsp. petraea
  • Quercus petraea subsp. pinnatiloba (K.Koch) Menitsky
  • Quercus petraea subsp. polycarpa (Schur) Soó

Diseases and pests

  • Acute oak decline
  • Sudden oak death
  • The Welsh oak longhorn beetle (
    Pyrrhidium sanguineum) is named after its host tree; the larvae feed at the bark interface of dead wood.[14]

Uses

Sessile oak is one of the most important species in Europe both economically and ecologically. Oak timber is traditionally used for building, ships and furniture. Today the best woods are used for quality

fuel wood. During autumns with good acorn crops (the mast years), animals are traditionally grazed under the trees to fatten them.[18]

Pontfadog Oak

Main article: Pontfadog Oak

Known as "Wales's national tree", the Pontfadog Oak was a sessile oak considered to be the oldest oak tree in the UK. Located near Chirk in North Wales, its girth was measured as over 16 metres (53 ft) in 1881 and it was understood to be over 1,200 years old, an age that was due to regular pollarding for much of its life. The hollow trunk had a girth of 12.9 m (42 ft 5 in).[19]

The tree was lost in April 2013 when it blew down in high winds.

the Crown Estate propagated a sapling from the original tree and planted it in Windsor Great Park.[21] A further five saplings have been cloned from the Pontfadog Oak, three of which will be planted at the National Botanic Garden of Wales, with the other two going to sites near Pontfadog; one at Chirk Castle and the other at Erddig, as part of a woodland memorial to those who died during the COVID-19 pandemic.[22]

See also

References

  1. doi:10.2305/IUCN.UK.2017-3.RLTS.T62539A3116237.en
    . Retrieved 19 November 2021.
  2. ^ a b "Quercus petraea". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 14 September 2016 – via The Plant List. Note that this website has been superseded by World Flora Online
  3. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 26 June 2015. Retrieved 14 September 2016.
  4. ISBN 9781771649674
    . Retrieved 3 March 2025.
  5. ARKive.org. Archived from the original
    on 30 May 2017. Retrieved 15 May 2017.
  6. ^ "Quercus petraea". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 14 September 2016.
  7. ISBN 0002120356
    .
  8. ^ "Tree trail with worldwide flavour", BBC News, 23 July 2004
  9. ISBN 978-0313344961
    .
  10. ^ West Briton, September 01, 2011, Will native trees thrive in the future? Archived June 9, 2013, at the Wayback Machine
  11. PMID 26266803
    .
  12. ISBN 9781845337315
    .
  13. ^ a b "Quercus petraea (Matt.) Liebl." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2 March 2023.
  14. ^ Bullock, J.A. 1992. Host Plants of British Beetles: A List of Recorded Associations – Amateur Entomologists' Society (AES) publication volume 11a: A supplement to A Coleopterist's Handbook.
  15. PMID 32847132
    .
  16. S2CID 226276130
    .
  17. PMID 33202723
    .
  18. ^ Ducousso, A. & Bordacs, S. (2004), Pedunculate and sessile oaks – Quercus robur/Quercus petraea: Technical guidelines for genetic conservation and use (PDF), European Forest Genetic Resources Programme, p. 6, archived from the original (PDF) on 2 October 2018
  19. ^ Vidal, John (28 April 2013). "The Pontfadog oak was the oldest of the old, revered, loved ... and now mourned". The Observer. Retrieved 1 May 2013.
  20. ^ "Pontfadog Oak: 1,200-year-old tree toppled by winds". BBC News Online. 18 April 2013.
  21. ^ "One of the world's largest and oldest oak trees returns to Chirk Castle". National Trust. Retrieved 29 April 2023.
  22. ^ Morris, Steven. "North Wales' ancient felled Pontfadog oak returns in five cloned saplings". The Guardian. Retrieved 29 April 2023.
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