Jambosa lineata Candolle, Prodr. 3: 287. 1828; Clavimyrtus latifolia Blume; C. lineata (Candolle) Blume; Myrtus lineata Blume (1826), not Swartz (1788); Syzygium longiflorum Presl.

Trees. Branchlets blackish brown when dry, terete; old branches grayish white. Petiole 1-1.2 cm; leaf blade elliptic to ovate-elliptic, 6-8 × 2.5-3.5 cm, leathery, abaxially slightly colored when dry, adaxially dark brown and glossy when dry, abaxially with numerous glands, adaxially with small glands, secondary veins dense, ca. 1 mm apart, at an angle of ca. 75° from midvein, abaxially visible but slender, and adaxially inconspicuous, intramarginal veins less than 1 mm from margin, base wide and obtuse, apex acuminate and with a 1-1.5 cm cusp. Inflorescences terminal, paniculate cymes, 8-10 cm, 3-branched, many-flowered. Flower buds pyriform, 6-7 mm. Hypanthium obconic, ca. 5 mm. Calyx lobes semiorbicular, short. Petals distinct, ovate, ca. 3 mm. Stamens 5-7 mm. Style 6-7 mm. Fruit ellipsoid, ca. 1 cm. Fl. Apr.

Guangxi [Indonesia, Malaysia, Myanmar, Thailand, Vietnam].