Cratoxylum cochinchinense

Cratoxylum cochinchinense (or Cratoxylon cochinsinensis (Lour.) Blume, an orthographic variant often still used in Vietnam, where the species was described ) is a plant now placed in the family Hypericaceae. The specific epithet cochinchinense is from the Latin meaning "of Cochinchina". In Vietnamese C. cochinchinense is usually called thành ngạch nam or lành ngạnh nam, other names include: hoàng ngưu mộc, hoàng ngưu trà and đỏ ngọn.

In Malesia the trees are cut for derum timber.

Description
Cratoxylum cochinchinense grows as a shrub or tree, typically measuring 10-15 m tall with a diameter of up to 0.65 m. The brown bark is smooth to flaky, with characteristic lateral pegs which are the remnants of previous leaf clusters (see illustration); leaf undersides are glaucous. The flowers are crimson red, which develop into seed capsules measuring up to 12 mm long.

Distribution and habitat
Cratoxylum cochinchinense grows naturally from southern China to Borneo. Its habitat is sub-tropical and tropical forests, including kerangas forests and peat swamps.