The European native oak Quercus petraea is an oak of many common names -- Durmast, Irish, Welsh, Cornish and sessile. While related to the English oak (Quercus robur), the Sessile oak has long-stalked leaves and almost stalkless acorns. Both species are members of the white oak group and produce acorns annually.

What does Durmast oak mean?

: a European oak (Quercus petraea) valued especially for its dark heavy tough elastic wood and for its tannin-rich bark.

How can you tell sessile oak?

The leaves have a long stalk and don't have earlobes at the base. The edges of the leaves merge gradually into the stalk and it's 'earlobes' are less pronounced. twig by a long stalk, giving the appearance of being similar to a clay pipe. Sessile oak acorns are mostly in pairs or clusters and have very short stalks.