Wikstroemia tenuiramis grows as a small tree up to 10 metres (30 ft) tall.

Inflorescences bear up to five yellowish or cream-coloured flowers.

The specific epithet tenuiramis is from the Latin meaning 'thin branches'.

Habitat is swamps and forests from sea-level to 1,600 metres (5,200 ft) altitude.

W. tenuiramis is found in Sumatra and Borneo.