1. Branchlet with young shoot. Male catkins (a - c), and female inflorescence (d). - 2. Branchlet with developed shoots and almost ripe fruits. Fruits are with a very short stalk. - 3. Ripe acorn, at the end of the first season. - 4. Cupule. - 5. Winter-branchlet. Branchlets and buds are densely covered with grey hairs. After Hempel & Wilhelm, 1889. Photos and explanations from the book: Zelimir Borzan. "Tree and Shrub Names in Latin, Croatian, English, and German, with synonyms", University of Zagreb, 2001.
You must attribute the work in the manner specified (but not in any way that suggests endorsement). You may not use this work for commercial purposes unless permission is granted by the photographer or copyright owner.