1. Branchlet in flowering season with male (a - d) and female (e) catkins and stalked vegetative buds (k). - 2. Mature (autumn) branchlet with ripe conelets (a - c), male (d - f) and female (g - i) catkins and vegetative buds (k). - 3. Fruits (small winged nuts) as viewed from different sides. - 4. Seedling with cotyledons and first leaves. - 5. Winter-branchlet with closed male (a - d) and female (e) catkins and stalked vegetative buds (k). 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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