Xanthophyllum korthalsianum is a tree in the family Polygalaceae. It is named for the Dutch botanist Pieter Willem Korthals.
Description Xanthophyllum korthalsianum grows up to tall with a trunk diameter of up to . The inflorescences are branched and may be much longer than the leaves.
Distribution and habitat Xanthophyllum korthalsianum is a rare species, growing naturally in Sumatra and Borneo. Its habitat is ridge forest at around altitude.
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