Pronounced gu lao (falling tone) in the "Tang Yun" (Tang Yun), same pronunciation as "gao". The "Yu Pian" (Yu Pian) records it as the name of a type of grass. Its fruit resembles a melon and can treat malaria when eaten. Also, the "Shan Hai Jing" (Shan Hai Jing) records that on Lun Zhe Mountain, there is a type of tree called Bai Gou. Furthermore, the "Ji Yun" (Ji Yun) gives the pronunciation as ju jiu (falling tone), same pronunciation as "jiu". It is also the name of a type of grass.