frontier co-op organic cut & sifted echinacea angustifolia herb 1lb frontier co-op frontier echinacea, commonly referred to as coneflower, is a genus of nine different herbaceous plants native to north america. the two primary species used in herbal preparations are e. angustifolia and e. purpurea, which are often used interchangeably. the root can be used to make a cooling, spicy, acrid-tasting tea.<p><b>directions:</b><p>directions for use: to use as a tea, add 1 tsp. of herb to a tea infuser and place in a tea cup. pour boiling water over infuser, cover, and steep for 3-5 minutes.