Quercus petraea (Sessile Oak)
Also known as: Durmast Oak
Native: Europe, west Asia
This and Quercus robur are the common British oaks. Height to 30m but can grow taller. Very long lived.
Leaves have a stalk whereas the Quercus robur has sessile leaves, they are 7.5-12.5cm long.
Flowers appear in May, the females are in the leaf axils on the end of the new shoot.
Acorns are sessile which is the main difference between this oak and Quercus robur where the acorns are on long stalks. The acorns grow as much as 3cm long, with more scales on the cup than on the Quercus robur.