Ключевые слова: bachelors button, background, basket flower, bloom, blossom, blue, bluebottle, botany, boutonniere flower, centaurea, centaurea cyanus, closeup, cornflowers, flower, green, growth, habitat, head, hurtsickle, inflorescence, isolated, knapweed, life, naturalized, nature, petal, plant, stalk, summer, weed, white, wildflower,