Due to the regional differences between the north and the south, their food culture will be very different. For example, northerners like salty soybean milk, while southerners like sweet soybean milk. These food differences are also hot topics on the Internet in recent years. And some foods are very popular in the south, but northerners know nothing about them. Take Nostoc flagelliforme as an example. Few northerners have heard of it? Can hair be made into a dish? But when southerners hear this name, they will surely awaken their childhood memories. When I was a child, when I hosted a banquet, dishes made of Nostoc flagelliforme would definitely appear on the table, such as Nostoc flagelliforme soup, Nostoc flagelliforme stewed pig's feet and so on. Even if you don't eat on holidays, you should recite seaweed on the table. Why? So today we will introduce this kind of Nostoc flagelliforme, which is deeply loved by southerners, especially in Guangdong and Guangxi.

Nostoc flagelliforme, although it has vegetables in its name, will be mistaken for a plant by many people, but it is not. Its alias is Nostoc flagelliforme, which is named after it looks like hair. It is mainly distributed in deserts and poor soils all over the world, and it is also often seen in lemons in Ningxia and Gansu provinces of China. Nostoc flagelliforme has been recorded in China for a long time. It was also used as export goods and as a tribute to the emperor in the Tang and Song Dynasties, and Nostoc flagelliforme appeared on the menu of Empress Dowager Cixi. The plain appearance of Nostoc flagelliforme has always been so popular because of its wealth, because it is a precious food as a tribute and has the reputation of the treasure of Gobi.

Moreover, Nostoc flagelliforme is rich in minerals and trace elements such as calcium, iron and magnesium, and its nutritional content is still very high, which is higher than that of pigs, sheep, cattle and eggs. Nostoc flagelliforme tastes good. When it is put together with greasy dishes, it can improve the taste of the whole dish and retain the original sweetness of Nostoc flagelliforme. Nostoc flagelliforme is a delicious food with high nutritional value, even a small chef can make delicious food. In addition, the main reason why Nostoc flagelliforme is popular in Guangdong and Guangxi is that it is a bit like getting rich in Cantonese. They often call the names of Nostoc flagelliforme and trotters together to form a kind head. So whether you like Nostoc flagelliforme or not, it will definitely appear on the previous table.

The price of Nostoc flagelliforme is also rising year by year, even as high as 1,000 yuan a catty, and many people are still fighting for it. Now everyone is impressed by the knowledge of the charm of getting rich. In 2000, the State Council issued a notice prohibiting the collection, acquisition, processing, sale and export of Nostoc flagelliforme. Even now, we rarely see wild Nostoc flagelliforme in the market. It stands to reason that Nostoc flagelliforme, an algae, is in small quantity under everyone's pursuit, but it is not in danger of extinction. Why does the state prohibit its sale?

In fact, it has nothing to do with the number of Nostoc flagelliforme, but it is too expensive to dig wild Nostoc flagelliforme. Nostoc flagelliforme mainly grows in the desert Gobi grassland in China, but digging Nostoc flagelliforme needs to turn over the whole land, which will lead to grassland degradation and desertification, seriously destroy the ecological environment and even affect the normal production and life of farmers and herdsmen. According to statistics, digging 200-200 Nostoc flagelliforme requires 10 mu of grassland, and it takes ten years to recover. This way of collecting Nostoc flagelliforme is also one of the main causes of sandstorms in China.

The collection cost of Nostoc flagelliforme is too high, so the country has to explicitly prohibit the collection and sale of wild Nostoc flagelliforme. At present, cultured Nostoc flagelliforme has been cultivated in the market, and its appearance and taste are very similar to those of wild Nostoc flagelliforme. People call it Gracilaria lemaneiformis, but some people say that the taste of Gracilaria lemaneiformis on the market is not as good as that of wild Nostoc flagelliforme. However, there is no need to worry about this kind of food in China, don't you think?