Eugenia formosana Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 113. 1911; E. acutisepala Hayata; Syzygium acuti sepalum (Hayata) Mori.

Shrubs or trees, 3-4 m tall. Branchlets 4-angled or terete, gray or grayish white, glabrous or papillate. Petiole 0.8-1.2 cm, slender; leaf blade elliptic, obovate-elliptic, or oblong, 4.5-6 × 1.5-2.7 cm or wider, leathery, abaxially grayish brown to yellowish brown when dry, adaxially brown to dark brown and glossy or not glossy when dry, abaxially with small conspicuous glands, secondary veins ca. 22 on each side of midvein, slender, and at an angle of 65°-70° from midvein, intramarginal veins ca. 0.5 mm from margin, base cuneate, apex obtuse, abruptly mucronate, or slightly acute and with an obtuse cusp. Inflorescences terminal and in axils apically on branches, cymes arranged into panicles, 3-3.5(-6) cm, 2- or 3-branched; peduncle slightly ridged; bracts aciculate. Flower buds ovoid, 2-2.5 mm. Hypanthium obconic, 2-4 × ca. 3 mm, base narrow. Calyx lobes 4, triangular, less than 1 mm. Petals 4, coherent, suborbicular, ca. 2 mm. Stamens ca. 25; filaments 4-5 mm; anthers short and small. Style ca. 4 mm. Fruit dark red, rounded, ca. 10 × 7-8 mm. Fl. Feb-Mar, fr. Dec-Jan.

● Broad-leaved evergreen forests, secondary forests, trailsides; 400-800 m. Taiwan.