Oak stalk
The Chêne stalk ( Quercus robur L. = Q. pedunculata Ehrh.) is a Arbre with null and void Feuillage of the moderate areas of the northern hemisphere, pertaining to the family of the Fagacée S. Its various names come from Latin robur extremely and pedunculatus stalk because the fruit is carried by a length Pédoncule.
It carries also names white oak , oak female , gravelin , oak with bunch, châgne .
Description
It is a large tree from 25 to 35 meters in height. Its foliage is caducifolié. It has a longevity from 500 to 1000 years. It is a species Monoïque and Postpionnière.-
the bark is smooth at the young trees then becomes very deeply crevassée with horizontal gerçures.
- the buds are ovoid.
- the Feuille S are alternate with a very short petiole and Oreillette S. the lobes are marked little (corrugated).
- the nipples (3) measure from 1 to 5 centimetres and are carried by a long stalk (from 2 to 10 cm).
Differences with the sessile Oak
- the petiole of the oak stalk is shorter than that of the sessile oak.
- the edge of the sheet of the sessile oak is more and more regularly lobed.
- the base of the sheet of the oak stalk has auricles, that of the sessile oak is wedge-shaped.
However, the two species are often hybrident what makes the identification more difficult. It is even impossible to distinguish from the cut wood of these trees.
Geographical distribution
Quercus robur is very common in the plains of France safe in the Corsica Mediterranean region and in .It develops out of wood, waste land and even in the hedges.
Ecological requirements
- It is a species Héliophile.
- It develops on varied grounds.
- It is sensitive to the Oïdium.
Use
These nipples fall at the time of the Glandée in autumn. They nourish the pigs, today the Sanglier S, before the Porc S.The wood of Quercus robur , porous structure, has many Tanin S and brings to the Vin of the flavors of grilled almonds and Caramel.
See too
| Random links: | Anillo Lardner | Ludibrium | Islamic museum of art of Marrakech | Incorruptibility | Antoine de Béthencourt (general) | Mafikeng | Finistère |