Trees, small, glabrous. Branches pale brown to grayish, terete. Petiole 1.5-2 cm; leaf blade obovate-oblong, 6-8 × 3-3.5 cm, thickly leathery, glabrous, adaxially with numerous obscure glands, secondary veins numerous, base attenuate to cuneate, apex obtuse to sometimes shortly acuminate. Inflorescences terminal, cymes, ca. 6 cm; branches stout, ultimate branches short. Hypanthium funnel-shaped. Calyx lobes short, irregular. Petals coherent. Stamens numerous. Fruit reddish when ripe, ovoid-ellipsoid, ca. 12 × 6 mm, glabrous; persistent calyx forming an apical rim.

Syzygium densinervium var. densinervium occurs in the Philippines.

● Broad-leaved evergreen forests, mountain slopes; low elevation. Taiwan (Hengchun Peninsula, Huoshao Dao, Lan Yu).