Pingtan Nostoc flagelliforme can be bought in the vegetable market or supermarket in Pingtan.

Nostoc flagelliforme, also known as Nostoc flagelliforme, is an algae of Nostoc in Cyanophyta, which is widely distributed in deserts and poor soils all over the world. It is named for its black and slender color, such as human hair, which is edible. Nostoc flagelliforme is now a national key protected wild plant. Nostoc flagelliforme is rich in nutrition, and the content of minerals such as protein, calcium, phosphorus and iron is higher than that of pigs, cattle, mutton and eggs, which is helpful for digestion, digestion, clearing stomach and lowering blood pressure. Nostoc flagelliforme has a strong function of regulating qi and is fat-free. It is a "thin thing" of delicacies, which can resolve phlegm and soften hardness, clear away lung heat and relieve cough, and can be used for adjuvant treatment of lipoma, obesity, phlegm-dampness cough and other diseases. The effective components of Nostoc flagelliforme have the functions of lowering blood pressure, diuresis and regulating nerves, and are ideal foods for patients with hypertension, coronary heart disease and hyperlipidemia. Nostoc flagelliforme can provide rich nutrition for human body and has certain curative effect on anemia and chronic bronchitis in the elderly.