Beech typically has smooth grey bark and medium-sized, pleated leaves. These normally spreading trees are up to 25m (80ft) tall, but more compact forms can have narrow upright or teardrop-shaped crowns and some have cut-leaved, purple (copper) or bright yellow (golden) leaves. A few have a weeping habit. Beech hedging looks distinctive from many other deciduous hedges in winter because it keeps the brown leaves from the previous season. However, its appearance is similar to hornbeam.