Nostoc nigricans belongs to Cyanophyta in plant taxonomy, and it is an algae-containing algae. This kind of algae grows in desert and semi-desert areas, and it appears every spring and summer after rain. Ningxia black panther Nostoc flagelliforme is slender, black and bright in color and pure in quality. It is harvested in late autumn and early spring. The production process is to select, remove impurities, wet, dry and package the "Chinese cabbage" in the reclamation area. Fresh Nostoc flagelliforme is blue-green or brown, black after air-drying, and its shape resembles that of oriental women's hair, hence the name. It is a kind of high-grade food, which is called "Delicious Eight Treasures" together with sea cucumber, fish maw, bird's nest, squid, Hericium erinaceus, shark's fin and bear's paw, and it is an essential delicacy for holiday feast. Nostoc flagelliforme is nutritious and easily absorbed by human body. Its protein content is 20 times that of eggs, and it contains more sugar, fat and calcium, and is rich in minerals such as phosphorus and iron. In medicine, it can help digestion, relieve fatigue, clean the stomach and lower blood pressure. After the operation, patients can eat Nostoc flagelliforme to promote wound healing.

2. Hongbao Lycium barbarum

Hongbao Lycium barbarum, whose fruit is called Lycium barbarum, is one of the most famous specialties in Yinchuan, Ningxia, ranking first among the five treasures. For a long time, Ningxia Lycium barbarum ranks first in the country for its pure quality and abundant output. According to historical records, Lycium barbarum was cultivated in Ningxia for at least 500 years, and it was listed as a tribute fruit in Hongzhi period of Ming Dynasty. According to the Annals of Zhongwei County compiled during the Qianlong period of the Qing Dynasty, Qiyuan was planted in Ning 'an area (now Zhongning County, Ningxia), and all provinces were produced with Lycium barbarum as medicine. At that time, people once wrote poems to praise: in June, the trees in Qiyuan Garden were red, and Ning 'an medicine and fruit were good in the world. A thousand dollars is worth a barrel of current price, which is better than a fertile field. "Shuofang Daozhi" also records that Lycium barbarum is superior to others. After more than two thousand years of Chinese medicine practice, Lycium barbarum is a good medicine for nourishing and strengthening the body. Its main functions are: moistening lung, clearing liver, nourishing kidney, benefiting qi, producing sperm, strengthening yang, relieving fatigue, strengthening bones and muscles, expelling wind and improving eyesight.

3. Glycyrrhiza uralensis Fisch

Huangbao licorice is a precious medicinal material produced in Ningxia, and it is one of the five precious medicines in Ningxia. Glycyrrhiza uralensis Fisch is a widely used Chinese herbal medicine, which can not only blend various drugs, but also invigorate qi, reduce fire, detoxify and strengthen tendons and bones. Indications: weakness of spleen and stomach, cough with excessive phlegm, sore throat, carbuncle and pain, fetal toxicity in children, etc. It also has anti-ulcer, anti-inflammatory, blood pressure lowering, blood lipid lowering, central inhibition, spasmolysis and even anti-tumor effects. Known as the "old country" of traditional Chinese medicine, it is known as the "king of medicine". Licorice has been used as medicine for a long time. As early as more than two thousand years ago, Shennong Herbal Classic listed it as a good medicine. Tao Hongjing, a medical scientist in the Southern Dynasties, respected licorice as "the old man of the country" and said: "This grass is the king of many medicines, and there are very few people who don't use it in ancient books." "the country is old", that is, the name of the empire. The reason why Ural Glycyrrhiza uralensis Fisch is regarded as the "imperial doctor" of medicine is just as Li Shizhen explained in Compendium of Materia Medica: "Among all the medicines, Ural Glycyrrhiza uralensis Fisch is the king, treating 72 kinds of milk stone poisoning, resolving 1,200 kinds of plant poisoning and reconciling various medicines, so it is called" the old country ".