China celery: The petiole is slender and can be divided into green celery and white celery according to the color of the petiole. Green celery leaves are big, green, petiole is thick, transverse diameter is about 1.5 cm, aroma is rich, yield is high, and softening quality is average. White celery plants are short, with small leaves, light green, thin petiole, transverse diameter of about 65438±0.2cm, yellow-white or white, fragrant, good quality and easy to soften.
Celery: mainly imported from Europe and America, with compact plant type and strong growth potential, the plant height is 60 ~ 80cm；; Petiole is thick, wide and flat, with a width of 2.3 ~ 3.3 cm, mostly seedling, underdeveloped vascular bundles, thick keratinous tissue, less cellulose and light and crisp taste; The heat resistance is poor, and the weight per plant is 1 ~ 2kg. There are two kinds: green handle and yellow handle.