noun
- any of several coneflowers of the genus Echinacea whose leaves, roots, and other parts are used in herbal medicine to promote wound healing and enhance the immune system.
noun
- Also called: purple coneflower either of the two N American plants of the genus Echinacea, having flower heads with purple rays and black centres: family Compositae (composites)See coneflower
- the powdered root of either of these plants, used to stimulate the immune system