2. "Cutting Notoginseng" is a term in the industry of Notoginseng, which refers to the interface between the main root and stem of Notoginseng, and mainly plays the role of transporting nutrients and supporting the aboveground parts (stems and leaves). Generally speaking, it is the joint between the Panax notoginseng growing in the soil and the Panax notoginseng growing outside the soil, and it is also called "reed head".