DistributionRead full entry
This species is found in China (SE Xizang [Tibet], NW Yunnan, S Sichuan), E Nepal, Bhutan, India (Arunachal Pradesh, Assam), Myanmar [Burma], Viet Nam (only known for certain from Lam Dong (Duc Trong, Xuan Tho, Don Duong, Lac Duong), Malesia, Philippines, Sulawesi and Sumatera.There is also one specimen record from northeast Thailand that dates back to 1931; since then it has not been recollected (Somran Sudee, Rachun Poona, Bangkok Forestry Herbarium, pers.comm.). It may also occur in Lao PDR.
The extent of occurrence is well beyond 20,000 km2. Its area of occupancy is also likely to be more than 2,000 km2.