Description from Flora of China
Trees, medium sized. Bark on lower part of trunk or sometimes extending to larger branches, grayish brown, fibrous, persistent; bark on smaller branches whitish yellow, smooth, exfoliating. Branchlets terete. Young leaves slightly grayish, oblong, ca. 5 × 2.5 cm. Mature leaves with a 1-1.5 cm petiole; leaf blade narrowly lanceolate to lanceolate, 7-13 × 1-1.5 cm, slightly twisted, leathery, both surfaces with numerous black glands, secondary veins at an angle of ca. 30° from midvein but ternate at base, intramarginal veins ca. 2 mm from margin. Inflorescences axillary, umbels 3- or 7-flowered; peduncle 4-9 mm. Flower buds ovoid, ca. 5 mm. Hypanthium campanulate, 3-4 mm; stipe 2-9 mm; calyptra coniform-semiglobose, as long or slightly shorter than hypanthium, sometimes apiculate. Stamens 4-6 mm, peripheral stamens sterile; anthers small, truncate-capitate, poricidal. Capsule semiglobose, ca. 5 mm in diam.; disk narrow; valves 5 or 6, equaling hypanthium rim or included. Fl. Aug-Sep.
Cultivated in Guangdong, Guangxi, and Yunnan [native to E and SE Australia].