Though native to Europe, especially the Mediterranean region, fennel is today cultivated in many other parts of the world, including North America, Asia, and China. Fennel (Foeniculum vulgare) is a perennial plant. The leaves, bulb, and stalk of fennel resemble white celery and are all edible.  The seeds are used in herbal medicines and as a spice in cooking. Fennel is widely used in Mediterranean cuisine and has a sweet licorice taste.