Plant that originally comes from the Eastern United States.
Scientific name: Echinacea angustifolia, Echinacea purpurea, Echinacea pallida.
Other Names: Purple coneflower, Black-eyed Susan.
Active Ingredients: Esters of caffeic acid: echinacosides A and B (0.3-1.3% in the roots and flowers of Echinacea angustifolia, 0.4-1.7%, cynarin, chicoric acid, Essential oil (aerial tops of both): borneol, bornylacetate, D-germacranene, caryophyllene. Anthocyanosides; traces of pyrrolizidine alkaloids (tusilagin, isotusilagin), resin, fatty acids and phytosterols, isobutylamides, polysaccharides.
Part used: Flowers, stem and root.