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Range DescriptionIn mainland China, this species is currently known from several localities on the divide between the Nu Jiang (Salween) in extreme NW Yunnan and SE Xizang [Tibet] as well as the Nmai in extreme NE Myanmar [Burma]. This current distribution reflects a recent history of intense exploitation within the last 100 years in the southern parts of the Gaoligong Mountains in China and Myanmar. A locality on the Nu Jiang - Jin Jiang divide needs further verification. In all other areas of China this species is very likely not indigenous. In Taiwan, its natural distribution is spread across the central mountains of the island. In Viet Nam it is only known from one locality in the southern part of the Hoang Lien Range. This was discovered in 2001.