The copper beech (Fagus sylvatica f. purpurea) belongs to Fagaceae (the Beech family). It is a tall deciduos tree that is a natural mutant of the "common beech" grows in various parts of Europe. This tree grows to a height of more than 40 m. The bark is smooth, thin and gray, often with slight horizontal etchings. Twigs are slender and gray but not straight, resembles a zig-zag. The leaves are coppery to deep purple in color, ovate and fringed with silky brown hairs. The flowers appear in April and May. The tassel-like male catkins hang from long stalks at the end of twigs, while female flowers grow in pairs, surrounded by bracts. The fruits are one or two reddish brown nuts, and covered with woody cupules.