Echinacea—or purple coneflower—was used by a number of Native American tribes for hundreds of years before it was introduced into Western herbal traditions in the late 1800s. Today, it is one of the most studied herbs. This pleasant-tasting herbal blend supports a healthy immune system response. This tea tastes mildly minty, with a twist of citrus. You may notice echinacea`s characteristic tongue-tingling effect, a sign of very high quality.