Echinacea is a group of flowering plants used as a popular herbal remedy. They’re linked to many health benefits, such as reduced inflammation, improved immunity and lower blood sugar levels. Echinacea is a perennial herb. It has tall stems, bears single pink or purple flowers, and has a central cone that is usually purple or brown in color. The large cone is actually a seed head with sharp spines that resemble a stiff comb. Depending on preference, it can be grown as a herb or a flower.