| Quercus x pastorae | |
| Author | M.A. Pineda, F.M. Vázquez & Sanchez Gullón 2015 |
| Synonyms | robur X suber |
| Local names | |
| Range | Spain (a single tree appeared in an area where Q. robur has been planted for reforestation, close to a natural Q. suber forest, in the south of Seville province). |
| Growth habit | reaches 8 meters tall; |
| Leaves | 6-8 x 2-4 cm; deciduous; coriaceous; plane; lanceolate; base cuneate; margin serrate with teeth more or less acute and mucronate; both sides glabrescent, above with frequent simple trichomes, underneath with fascicled and multi-stellate trichomes; up to 10 parallel secondary vein pairs; veins adaxially green, abaxially yellow-red to gree-red with short and long simple hairs; petiole pilose, coriaceous, red, 6-11 mm long; |
| Flowers | male catkins up to 7.5 cm, with 12-37 flowers; female inflorescences with 2-8 flowers |
| Fruits | acorn cup with free scales, on a peduncle up to 3,5 cm; |
|
Bark, twigs and |
young twigs glabrous and canaliculate; buds globose with concave, brown, ciliate scales; |
| Hardiness zone, habitat | moderate rainfall (to 900 mm annual precipitation); acidic, deep, sandy soils; |
| Miscellaneous | this taxon has inherited
from Q. robur the rather long fruit peduncle and the deciduous
leaves; from Q. suber the petiole, the foliar pubescence and the
cup scales. |
| Subspecies and varieties |
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| Pictures |  |