Quercus thomsoniana is a species of oak. It is a tree native to Sikkim and Bhutan in the eastern Himalayas and to northern Bangladesh. It grows in montane subtropical forests from 1,800 to 2,400 metres elevation. The species is known from few sites, and the IUCN Red List assesses it as Critically Endangered.
The species was described by Alphonse Pyramus de Candolle in 1894.
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