What does "southern vegetation" reflect?

The remarkable feature of the book Southern Vegetation is the primitiveness of its description. Many registered items may be transliterated from the original name of the country of origin. For example, Kohler and Children Without Thoughts are Persian; Bibo comes from Sanskrit; Du Kun and Du Tongzi come from Tong and Yao languages. In addition, the names of B, Zhou, Qian, Guo, Wen and Su Fang can also be transliterated. This book only describes the origin, shape, habits and uses of "grass", without mentioning the introduction of planting. His language is simple and his writing is refined. He seldom quotes other books. It is considered to have a certain opening power in describing southern creatures. It reflects the preliminary situation of some local specialties in southern China and many applied plants from South Asia, Persia and other countries.