Chinese celery 
Chinese celery is a smaller, thinner version of standard celery, although its flavour is quite a bit stronger. The crisp, hollow stems can be either light or dark green or white.
Indispensable to many Asian soups or stews, Chinese celery is one of the most commonly grown vegetables in China. The entire plant is used, either fresh or dried. Add leaves and stalks to flavour vegetable or meat soups, or use them in stir-fries. In China, celery is sometimes served as a dish by itself, stir-fried with a little soy sauce and sugar. It is seldom, if ever, eaten raw.
