1. Branchlet with male catkins (a - d) and a closed terminal vegetative bud of a new leader (k). - 2. Branchlet with female catkins (e - h) and closed terminal vegetative bud (k). - 3. Branchlet with mature leafy shoots and ripe fruit-catkins with closed (a), and just opening capsules (b). Stipules at n. - 4. Seedling with cotyledons and first ordinary leaves. - 5. Branchlet with vegetative (k) and fertile buds (b). 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.
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