English oak USDA PLANTS Symbol: QURO2
U.S. Nativity: Exotic
Habit: Hardwood Trees
Quercus robur L.

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Taxonomic Rank: Magnoliopsida: Fagales: Fagaceae
Synonym(s): pedunculate oak
Native Range: Europe, N. Africa, W. Asia (REHD);

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Tree(s); habitat
Robert Vidéki, Doronicum Kft., Bugwood.org
Additional Resolutions & Image Usage

Fruit(s); Acorns.
Gil Wojciech, Polish Forest Research Institute, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); 1. Branchlet with young shoots, male (a, b) and female (c, d) inflorescences. Typically several female flowers develop with each long, slender peduncles. - 2. Branchlet with mature shoots and almost ripe fruits (acorns). - 3. Ripe acorn, at the end of the first season. - 4. Peduncle with empty cup (a) and aborted fruits (b, c). - 5. Winter-branchlet; buds are egg-shaped, roundish at the top. After Hempel & Wilhelm, 1889. Photos and explanations from the book: Zelimir Borzan. "Tree and Shrub Names in Latin, Croatian, English, and German, with synonyms", University of Zagreb, 2001.
Zelimir Borzan, University of Zagreb, Bugwood.org
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Bark;
Gil Wojciech, Polish Forest Research Institute, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

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Invasive Listing Sources:
Reichard, Sarah. 1994.  Assessing the potential of invasiveness in woody plants introduced in North America. University of Washington Ph.D. dissertation.