'Rohanii' is a tall, dense, pyramidal tree with lower branches that sweep down to the ground and has smooth grey bark. Its spring leaves are a deep red-purple with a silky sheen and become dark-purple by summer. The striking feature of Fagus sylvatica 'Rohanii' is the deeply-lobed, decorative, oak-like leaves. During the autumn season, the leaves turn purple, then brown through the winter and fall off prior to the emergence of new leaves