Difference between watercress and dry cress is shown in the picture below:
Watercress
Dry cress
Watercress looks very similar to dry cress. However, the stems are mostly white and watercress is more showy looking, with smaller stalks and leaves, and an overall thin and long look.
Dry celery stalks are concave on the inside, when pinched, with a fascia, the shape of the leaves are also a little larger, the fragrance is stronger, when you cut, you can also clearly see the fiber, which is not in the watercress.
Dry celery's fiber is more method, and contains volatile oil, the fragrance is more strong, you can use it to seasoning, you can also directly fried to eat, but need to be with some meat to fry, to be more fresh and delicious.
Watercress growing environment and release:
Watercress like moist, fertile soil, flood-resistant and cold-tolerant. Suitable growing temperature 15-20 ℃, can tolerate low temperature below 0 ℃. Generally born in low wetlands, shallow swamps, river banks, or in paddy fields. Watercress can be planted from summer to white dew, and harvested before Qingming in the second year.
Distributed throughout China. In India, Burma, Vietnam, Malaysia, Indonesia, Java and the Philippines and other places are also distributed.