Ключевые слова: allergenic, allergy, avellana, beginning, birch, bloom, blooming, blossom, blue, botany, branch, bush, catkin, common, corylus, corylus avellana, countryside, cseason, earrings, european hazel, flora, flower, forest, garden, hazel, hazel blossom, hazel catkins, hazel flowers, hazelnut, natural, nature, nut, outdoor, plant, pollen, pollination, shrub, spring, springtime, tree, twig, wildlife, yellow,