I think the difference between celery and cilantro is as follows:

1. Appearance: The leaves of cilantro are rounder and smaller than those of celery, and the main root of cilantro is thinner, while the root of celery is average larger.

2. Smell: The fragrance of coriander is more prominent.

3. Stem shape: The stem of celery has grooves on one side and a node every 10-20 cm, while the stem of coriander begins to branch from the root.