There are two main kinds of celery, which can be divided into two types according to the shape of celery petiole: local celery (China type) and celery (Western celery, European type). This kind of celery has a slender petiole, about 100 cm high. According to the color of petiole, it can be divided into green celery (tall plant with large leaves and thick petiole) and white celery (short plant with small leaves and thin petiole). Celery: The plant height is about 60-80 cm, the petiole is thick, wide and flat, mostly solid, tasteless and heat-resistant.