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Quercus robur

species of plant

Specimen drawers, botanical folios and brass scientific instruments under study light
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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 14, 2026
Entity authorityQ165145 ↗
Source-derived summary

Quercus robur, pedunculate oak, European oak, or English oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to Europe and western Asia, and is widely cultivated in other temperate regions. It grows on soils of near neutral acidity in the lowlands and is notable for its value to natural ecosystems, supporting a diversity of herbivorous insects, acorn eating mammals and birds, and fungi.

The common name pedunculate oak refers to the acorns being borne on a peduncule, or stalk.

English oaks can live to very old ages, often growing for over 500 years, with some specimens believed to be over 1,000 years old They are characterised by thick and heavily fissured bark.

Description

Pedunculate oak is a deciduous tree, typically maturing at up to 20 m in height, and sometimes up to 40 metres (130 ft), with a single stout trunk typically reaching up to 4 m, sometimes exceeding 10 m (33 ft) in girth (circumference at breast height), or even reportedly 14 m in pollarded specimens. Older trees tend to be pollarded, with boles (the main trunk) about 3 m long. They often live longer and become more stout than unpollarded trees.

The crown is spreading and unevenly domed, and trees often have massive lower branches. The bark is greyish-brown and closely grooved, with vertical plates.

Editorial summary

“Quercus robur” enters the record as species of plant. Crown Archives preserves that source wording while asking what Quercus, robur and species can confirm, complicate or overturn.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current 228-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Quercus, robur and species.
Editorial analysis

Why this record matters

“Quercus robur” is worth following because a concise public description often conceals a longer documentary argument. Here, Quercus, robur and species provides the most credible route into that argument.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q165145. The Library of Congress control number is sh85043922. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

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Three-step research path

  1. Establish the record: confirm the title “Quercus robur”, its source revision and the description used here.
  2. Expand the search: follow Quercus robur primary sources, Quercus robur archive and Quercus research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from “Quercus robur” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.