As a new food, frozen vegetables, which have recently become a media topic, are foliage plants belonging to dicotyledonous family.

Because there is salt on the surface of leaves, they look like ice, so they are called ice dishes. It originated in South Africa and attracts people's attention as an ingredient of French cuisine.

Plants are characterized by drought resistance and high salt tolerance, and are salt-tolerant plants. The salinity is half that of seawater, and hydroponics can also be carried out in sodium solution.

The growth cycle is about half a year, so it is easy to cultivate, so it is collected as a biological sample in the study of plant salt tolerance.