Wu Yonghong, 50, is a Tibetan saffron planter in Lhasa. Wu, originally comes from Southwest China's Sichuan province and started to work in Tibet in 2006. Some Tibetan saffron can be sold for up to 300 yuan ($46.95) per gram. Wu only reunites with his family who live in Chengdu, capital city of Sichuan province, during holidays. [Photo by Wang Zhuangfei/chinadaily.com.cn]