Palaquium rioense is a species of tree in the family Sapotaceae. The specific epithet rioense refers to Sumatra's Riau province.
Description Palaquium rioense grows up to tall. The bark is brown. The flowers are brownish. The fruits are obovoid, up to long.
Distribution and habitat Palaquium rioense is native to Riau and Borneo. Its habitat is hill and montane forests at altitude.
Conservation Palaquium rioense has been assessed as near threatened on the IUCN Red List. The species' habitat is threatened by harvesting for its timber. In Borneo, it is also threatened by conversion of land for palm oil plantations. The species is in Kinabalu National Park which affords it some protection.
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