Sweet Osmanthus is the city flower of Guilin. It is an evergreen plant and belongs to Sweet Osmanthus genus and Sweet Osmanthus family. Guilin has many Sweet Osmanthus tree forests, hence the name of Guilin (Forest of Sweet Osmanthus trees).
The history of Sweet Osmanthus in Guilin can be traced back to 10,000 years ago. Pollen had been discovered in the relics of Zengpiyan Cave of the New Stone Age located to the south of the city. Guilin has been enjoying a fame of "home of Sweet Osmanthus" for a long time.