1. Branchlet with young shoots and male catkins (a - d). - 2. Branchlet with young shoots and female catkins (c - i). - 3. Branchlet and mature leafy shoots, with closed (a), and opening, many seeded capsules (b), and empty capsules (c). Seeds with a tuft of silky hairs. Stipules at n. Leaves are broadest at their lower third. - 4. Seedling with cotyledons and first ordinary leaves. - 5. Winter-branchlet. 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.