Syzygium tenuicaudatum Merr. & Perry, Mem. Amer. Ac. 18 (1939)

Synonyms
Eugenia tenuicaudata (Merr. & Perry) Anderson

Diagnostics
Small understorey tree. Stipules absent. Leaves opposite, simple, penni-veined, venation conspicuous, glabrous. Flowers ca. 15 mm diameter, white-yellowish, with protruding stamens, flowers in panicles. Fruits ca. 14 mm diameter, green, fleshy berries.

Description
Small understorey tree with smooth pale cream-brown bark. Parts hairless. Twig slender, elliptic, strikingly cream-white, smooth. Leaf blade c.20 x 3.5(16-25 x 3-5) cm but variable, lanceolate, leathery, drying shiny purplish brown above, dark chocolate brown beneath; base wedge-shaped, abruptly joining c.1 cm black-drying stalk, acumen to 3 cm slender caudate; pits and dots obscure, minute; veins unequal, main veins 20-25 pairs, many, sharply prominent especially beneath, spreading, not furrowed; tertiaries distinct throughout; intramarginal veins 2, main c.2 mm within margin, somewhat looped, prominent. Panicle to 10 cm long, slender, terminal or subterminal- axillary, sparsely branched. Flower white, bud to 8 x 3 mm, clove-shaped tapering gradually into pseudostalk, urn-shaped in flower; sepal lobes 4, to 2 x 3 mm, short, broad, rounded, thick with pale margin, reflexed in flower and falling thereafter; stamens many. Fruit to 18 x 20 mm, round or irregularly elliptic, smooth. [from Tree Flora of Sabah and Sarawak]

Ecology
In undisturbed to slightly disturbed (open) mixed dipterocarp and sub-montane forests up to 700 m altitude. On ridges and along rivers and streams with sandy soils.

Distribution
Borneo.

Local names
Borneo: Ubah.