The following relationships have been collated from the published literature (see 'Interaction References').
Filters:
| Affected Part | Summary | Taxon | Vernacular | Classification | References | |||
|---|---|---|---|---|---|---|---|---|
| is parasitised by |  |
 |
Erysiphe alphitoides | Oak Mildew | Erysiphales: Erysiphaceae | An Introduction to British Powdery Mildews, Ing, B., 1990 |
| Author & Year | Title | Source |
|---|---|---|
| Ing, B., 1990 | An Introduction to British Powdery Mildews | Mycologist Vol 4 (1) et seq. |
| Species hybrid | Quercus petraea x robur = Q. x rosacea (hybrid oak) |
| Genus | Quercus (oaks) |
| Family | FAGACEAE (forest trees) |
| Order | FAGALES (forest trees) |
| Subclass | EU-DICOTS (dicotyledonous flowering plants) |
| Class | MAGNOLIOPSIDA (flowering plants) |
| Phylum | TRACHEOPHYTA (vascular plants) |
| Kingdom | PLANTAE (plants) |
| Domain | Eukaryota (eukaryotes) |
| Life | BIOTA (living things) |
 NBN (data.nbn.org.uk)
has a distribution map for Quercus petraea x robur = Q. x rosacea (hybrid oak)
|
| Handling & Magnification | Author | Year | Title | Source |
|---|---|---|---|---|
| Crawley, M. | 2005 | The Flora of Berkshire | 1375pp, Brambleby Books |
Quercus petraea x robur = Q. x rosacea (hybrid oak) may also be included in identification literature listed under the following higher taxa:
| Author | Year | Title | Source |
|---|---|---|---|
| Valentine, D.H. | Geographical distribution and isolation in some British ecospecies | Dandy, J.E. The Watsonian vice-county system, 9pp, The Study of the Distribution of British Plants |
Literature listed under the following higher taxa may also be relevant to Quercus petraea x robur = Q. x rosacea (hybrid oak):
 BioImages (www.bioimages.org.uk)
has 8 images of Quercus petraea x robur = Q. x rosacea (hybrid oak)
|
The hybrid between our two native oaks is very variable and very common. Back-crossing produces intermediates in all the characters which separate the parent species.
Clues to hybridity:
| 1. combination of characters eg stalked acorns and stellate leaf hairs |
| 2. some leaves with base asymmetric, with a small auricle on one side but not on the other |
| 3. greater than usual variation in shape of leaf base so that some have cuneate bases and some are weakly auricled. |
| 4. broad leaves with rounded lobes. These forms can be quite striking and rather attractive. |
Unless otherwise expressly stated, all original material on the BioInfo website by Malcolm Storey is licensed under the above Creative Commons Licence.