||1. Branchlet with male catkins (a - f) and a closed terminal vegetative bud of a new leader (k). - 2. Branchlet with female catkins (g - i, l) and closed terminal vegetative bud (k). - 3. Branchlet with developed shoots and with ripe fruit-catkins (a, b). There are numerous seeds in a capsule. Stipules at n. - 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.