Lettuce, Asteraceae, lettuce genus, one or two-year-old herb. Lettuce can be divided into two categories: leaf and stem. Lettuce has a lot of names, in the herb book called "thousand gold vegetables", "lettuce" and "chicory". Leaf lettuce is also known as spring vegetables, lettuce, stem lettuce is also known as lettuce, bamboo shoots. China's cultivated area of lettuce than lettuce more. The flesh of lettuce is tender, and the stems can be eaten raw, cold, fried, dried or pickled. Lettuce is mainly eaten leaves or leafballs, in recent years in the major cities, especially in the southern coastal provinces of the development of large cities, to become the current increase in fancy varieties of the main vegetables. Lettuce stems and leaves contain lettuce pigment, bitter flavor, high temperature drought bitter taste, can enhance gastric juice, stimulate digestion, enhance appetite, and has analgesic and hypnotic effect.

Oleander, oleander belongs to the family of Asteraceae, is the tip, young leaves for the product of the pointed leaf type leaf lettuce, leaves were long lanceolate it looks a little bit like lettuce "head", leaf slender spread, shoots and thin and short. From the point of view of blood relationship, oat lettuce belongs to a variant of leaf lettuce - long leaf lettuce, and people are familiar with the lettuce is similar, so it is also known as Niuli lettuce. It has a light green color, strong growth . Disease resistance, adaptability, crisp texture, taste extremely tender, fragrant, "phoenix tail".