What Chinese medicine is "Gou,,"?

This refers to the collusion between traditional Chinese medicine and Uncaria rhynchophylla. An ancient writing method of ellipsis, that is, when the previous word and the latter word are the same word, for aesthetic needs, the latter word of two adjacent identical words is omitted as two dotted points of Lian Bi. Because the ancients thought that writing two identical words in adjacent places did not meet the requirements of calligraphy art, this common writing habit was formed. Its ancient people were also very particular about external use of drugs. If written as Uncaria rhynchophylla, it means that both Uncaria rhynchophylla and Uncaria rhynchophylla can be used as medicine. If it is written as Uncaria rhynchophylla, it means that only the collusion part of Uncaria rhynchophylla can be used as medicine. But when we use Uncaria now, it is basically not required to divide it so finely. Uncaria rhynchophylla and Uncaria rhynchophylla are commonly used as medicine, so most people don't know how the drug name Uncaria rhynchophylla came from now.