Ключевые слова: america, arvense, asteraceae, background, beautiful, bloom, blooming, blue, botany, california, canada, canadian, cirsium, closeup, corn, creeping, cursed, field, flora, flower, flowers, fresh, grass, green, hard, hell, isolated, leaves, lettuce from hell, light, natural, nature, new, north, noxious, perennial, plant, pretty, prickly, purple, scotland, smallflowered, spring, stem, summer, way, waythistle, weed, wild, wildflower,