Sand onion, Mongolia leek belongs to the lily family, perennial herbs. With rhizome, bulb columnar, clustered. Basal leaves thin linear. Scape cylindrical. Most of the small flowers crowded into hemispherical and spherical umbels, bright lavender to purple-red. Fl. June-Aug.

Seeds are long-lived and may germinate after being buried in sandy soil for several years. It is a companion plant of desert meadow plants, often born in the sandy loamy Gobi at a higher altitude, because of its shape resembles a young onion, so it is called sand onion. Sand onion can be made into a variety of dishes, but also has a certain medicinal value. Because of the sandy onion in the sandy loam Gobi growth and distribution of scattered, picking and cutting is not easy, coupled with its biological characteristics of the limitations of its production with the different annual climate and increase or decrease in the year of abundant rainfall, the yield can be a significant rise.