Celery is a biennial plant used as a culinary herb for its flavor and aroma. It is used both as vegetable and spice. The celery herb is native to Northern and western Europe. Stalk and seeds of the celery herb are used for food flavoring. It is also known as Chinese celery or Oriental celery. Celery is valued not only for its prized stalks but also for its leaves, roots and seeds. The essential content of the Celery seed includes terpenes and the sesquiterpenes ß-selinene and humulene. The fragrance is the result of phthalides that occurs only in traces.