The acidic soils support sweet chestnut Castanea sativa, sessile oak Quercus petraea, and ash Fraxinus excelsior.
The range of sessile oak does not extend quite as far east in Russia as that of pedunculate oak.
pedunculata as far as durability in water is concerned; but when grown under favourable circumstances the sessile oak is certainly equally lasting if kept dry.
Much of the native woodland is dominated by sessile oak which was worked for coppice nearly 200 years ago.
Breen Wood Antrim Breen Wood is one of the best examples of old sessile oak woods in Northern Ireland.