Ключевые слова: alder, alnus glutinosa, background, betulaceae, black alder, blooming, blossom, botanical, botany, branch, branches, brown, catkins, common alder, deciduous, dyeing, environment, european alder, flora, folk medicine, fruit, green, in bloom, inflorescence, landscape, leaf, leaves, natures, outdoor, paper manufacture, plant, pollen allergy, riverbanks, season, shape, silhouette, sky, smoked foods, summer, tanning, tree, uncultivated, wood,