The Leaf celery (Apium graveolens var. secalinum) belongs to Apiaceae (the Carrot family). It is a perennial herb that is the original species of "celery" native to Europe. After being introduced to China, it has long been called "qincai" and has been cultivated without improvement. It has a good aroma and is easy to eat. It is used for soups, omelets, salads, Chinese food, etc. It is about 30 to 100 cm high and blooms small white flowers in compound umbels from June to July. In Japanese name, it is called "Oranda-mitsuba".