1, Nostoc flagelliforme generally grows in Inner Mongolia Autonomous Region, Ningxia Hui Autonomous Region, Gansu and Qinghai.

2. Nostoc flagelliforme, also known as Nostoc flagelliforme, is a kind of bacteria belonging to Nostoc of Cyanomycetes, which is widely distributed in deserts and poor soils all over the world (such as China, Russian, Somali, USA, etc.). ). 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.