144725 Big Belly Oak in Savernake Forest, Marlborough, Wiltshire one of our more noteable ancient trees believed to be over 1,000 years old. Pedunculate or English Oak Quercus robur Fagaceae Height to 36m. Spreading, deciduous tree with dense crown. Bark Grey, thick and fissured with age. Branches Dead branches emerge from canopy of ancient trees. Buds hairless. Leaves Deeply lobed with 2 auricles at base; on very short stalks (5mm or less). Reproductive parts Flowers are catkins. Acorns, in groups of 1–3, with long stalks and scaly cups. Status Widespread; prefers heavier clay soils to Sessile Oak.