It is a perennial herb that grows in the mid-western region of North America. It has pink or purple flowers with a central cone which may be purple or brown in colour. The dried, whole, or cut underground parts of Echinacea angustifolia (Brauneria angustifolia), E. pallida (B. pallida), or E. purpurea, or the aerial parts of E. purpurea, is reported to have immunostimulant properties. It is used in herbal preparations for the prophylaxis of bacterial and viral infections. It is also used in homoeopathic medicine. It is widely used to treat upper respiratory tract infections such as common colds, and for urinary tract infections, and wound healing.
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