Ключевые слова: alternative, bushs purple coneflower, eastern purple coneflower, echinacea angustifolia, echinacea atrorubens, echinacea laevigata, echinacea pallida, echinacea paradoxa, echinacea purpurea, echinacea sanguinea, echinacea serotina, echinacea simulata, echinacea tennesseensis, flower, medical, narrowleaf coneflower, narrowleaved purple coneflower, pale purple coneflower, plant, purple coneflower, sanguine purple coneflower, smooth coneflower, smooth purple coneflower, tennessee coneflower, topeka purple coneflower, wavyleaf purple coneflower, yellow coneflower,