Introduction to the Zhengcaotang: The Fenshan Thatched Cottage is also known as the Zhengcaotang. The couplet at the door, "Poems written in Li Sao are sometimes used, and articles elegant, called my sect" are taken from the couplet written by Su Shi at the Quzi Temple in Miluo, Hunan. It is currently used as the Zhengcaotang Traditional Chinese Medicine Cultural Center and the Traditional Chinese Medicine Center.