Oak tauzin

The oak tauzin ( Quercus pyrenaica ), called simply tauzin (Gascogne), or oak brushes (Anjou), or black oak (Landes of Gascogne), is a tree with foliage null and void of fagacées .

Biological characters

It is a tree from 5 to 20 meters in height. Its foliage is null and void but resists on the tree during the winter (Marcescence). Its foliation is late (May). It is a species Monoïque. The date of flowering extends from May to June.

It pushes in the south-west of Europe, in dry and acid grounds until 500 m of altitude in France, 1400 m in Spain. Its longevity can reach 500 years. It is a species Postpionnière or pionnière on the acid grounds which it affectionate. It hybrid easily with other oaks.

Descriptive characters

tree of irregular form ramifying as of the base but ending up losing its lowest branches,
alternate sheets up to 20 cm, Pennatilobé be releasing 4 to 8 deeply indented lobes, short petiole and pubescent with a strong white tomentosity in particular opposite lower,
the bark is smooth of color dark gray grayed green then from where its nickname of black oak ,
unisexuées flowers, males gathered in hanging kittens, females solitary or by group of 3 or 4 at the base of the branches of the year.
nipples of approximately 3 cm with short petiole.

Geographical distribution

Species presents in the Iberian peninsula, on the Atlantic facade of France and in the north of Italy.

Ecological requirements

Thermophilous cold but resistant species ;
Heliophilous species ;
present on…;
Xerophilous species .

Spatial distribution

Present in wood lights where it forms bushes.

Utility

Its irregular wood is not used for construction but constitutes a good fuel.

Its nipples were formerly consumed.

References

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