2. The ice on Rabdosia rubescens is different from frost flowers such as fog pine. The ice on Rabdosia rubescens is the crystallization of the sediment at the bifurcation of branches, because this unique ice is called Rabdosia rubescens, also known as Agropyron cristatum, and is called "Cao Xian" by local people.
3. Since Sun Simiao, the "King of Medicine", he has been cherished by famous doctors in past dynasties.