These green leafy vegetables include spinach, Shanghai green, lettuce, oil wheat, spinach and so on. Ipomoea aquatica originated in East Asia. As a vegetable, Ipomoea aquatica is widely planted, and sometimes it escapes into the wild. It is widely cultivated in Fujian, Guangxi, Guizhou, Jiangsu, Sichuan, Guangdong and other provinces in central and southern China. Suitable for growing in warm and humid climate and fertile and humid soil, not cold-resistant, and the stems and leaves will die in case of frost.
Shanghai green, also known as Shanghai cuisine, has fewer leaves and more stems, and the stems are as white as a gourd ladle. So Shanghai green is also called gourd ladle. The characteristic of Shanghai Green is that every leaf is green, and every leaf has completed the photosynthesis of chlorophyll in the growing period. It is distributed in subtropical and temperate zones and can be found everywhere in China.
Lettuce is native to the Mediterranean coast of Europe and domesticated from wild varieties. The ancient Greeks and Romans ate it first. Lettuce has been introduced into China for a long time, and it is widely planted in the southeast coast, especially in the suburbs of big cities and Guangdong and Guangxi. In recent years, the planting area has expanded rapidly, and lettuce has also entered the dining table of ordinary people from hotels and restaurants.
The difference of green vegetables in southern China;
In the eyes of Jiangsu, Zhejiang and Shanghai people, only Shanghai Green is their green vegetable, which is the most standard green vegetable template. There are also small green vegetables, chicken hair vegetables and baby vegetables that also belong to the category of green vegetables. However, vegetables like lettuce, spinach and lettuce are not their real vegetables.
Sichuanese not only eat green vegetables such as sea cucumber and mustard, but also have more advanced and popular top green vegetables, such as peas, red stalks, radish buds and pumpkin vines.
Cantonese people like lettuce, chicken feathers, baby cabbage and kale, but Chinese cabbage is their favorite. Chinese cabbage, a kind of moss extracted from local vegetables in Guangdong, is especially fresh and tender, with an annual output of 9~ 10, and local people can eat fresh Chinese cabbage all year round.