Canned asparagus is a kind of high-grade canned vegetable, which is made of fresh asparagus, sterilized at high temperature and packed in glass bottles or tin cans. It is rich in various essential amino acids, plant proteins, minerals and trace elements, and can enhance human immunity. Modern medicine has proved that it also has the function of anti-cancer treatment.

Asparagus, the scientific name of asparagus, is a spring vegetable and a perennial flowering plant. Like its cousins leeks, onions and garlic, it was once classified as Liliaceae. However, Liliaceae has been differentiated, and this onion plant is now classified as Lycoris and Asparagus (Asparagus) of Asparagaceae.

The unearthed white bamboo shoots are called white bamboo shoots, and the unearthed green bamboo shoots are called green bamboo shoots. Even if the place of origin is different, in fact, no matter which asparagus variety, as long as it is irradiated in the sun, it will become green asparagus. If it is buried in the soil or protected from light, it will turn asparagus white.

Erect herbs, up to 1 m. The root thickness is 2-3mm. The stem is smooth, the upper part often droops in the later stage, and the branches are weak. Every 3-6 leaflike branches are clustered, nearly flat and cylindrical, slightly blunt, slender, often slightly curved, 5-30 mm long and 0.3-0.5 mm thick; Squamous leaves have short or near-distance spines at the base. Each flower 1-4 axillary, green and yellow; The pedicel is 8- 12(- 14) mm long, and the joint is located near the upper or middle part. Male flower: Perianth is 5-6 mm long; Filaments are inserted in perianth segments below the middle; The female flower is smaller and the perianth is about 3 mm long. Berries are 7-8 mm in diameter, red at maturity and have 2-3 seeds.