Syzygium longiflorum Presl., Abh. Konigl. Bohm. Ges. Wiss. V, 3: 500 (1845)

Latin for 'long flowers'.

Synonyms
Clavimyrtus latifolia Blume
Clavimyrtus lineata (Blume) Blume
Clavimyrtus symphytocarpa Blume
Eugenia cerasiformis (Blume) DC
Eugenia corymbosa Wall.
Eugenia expansa Wall.
Eugenia lineata (Blume) Duthie
Eugenia longicalyx Ridl.
Eugenia longiflora (Presl) F.-Vill.
Eugenia marivelesensis Merr.
Eugenia miquelii Elmer Eugenia robinsoniana Ridl.
Eugenia rubricaulis (Miq.) Duthie
Eugenia simulans King
Eugenia teysmannii (Miq.) Koord. & Valet.
Eugenia zippeliana Koord. & Valet.
Jambosa cerasiformis (Blume) Hassk.
Jambosa latifolia (Blume) Miq.
Jambosa lineata (Blume) DC
Jambosa rubricaulis Miq.
Jambosa symphytocarpa (Blume) Miq.
Jambosa teysmannii Miq.
Myrtus cerasiformis Blume
Myrtus lineata Blume
Syzygium angkolanum Miq.
Syzygium costatum Miq.
Syzygium javanicum Miq.
Syzygium lineatum (Blume) Merr. & Perry
Syzygium longicalyx (Ridl.) Masamune
Syzygium teysmanni (Miq.) Masamune
Syzygium zippelianum Miq.

Diagnostics
Sub-canopy tree up to 30 m tall and 44 cm dbh. Stipules absent. Leaves opposite, simple, penni-veined, secondary venation placed close together, inconspicuous, glabrous. Flowers ca. 12 mm diameter, white-pinkish, with protruding stamens, flowers placed in panicles. Fruits ca. 10 mm diameter, green-yellow-white-reddish, fleshy berries.

Description
Small to medium-sized canopy tree, occasionally to 20(-30) m tall, 44 cm diameter, with short thin buttresses and occasionally stilt-roots; bark red-brown, smooth becoming scaly; inner bark thin, grey-brown. Parts hairless. Twig slender, round, pale brown, becoming thinly cracked. Leaf blade c.6 x 3(3.5-8 x 1.5-4) cm, narrowly elliptic to lanceolate, somewhat leathery, drying dull throughout, dark tawny above, paler yellow-brown beneath with veins often darker, purplish; base wedge shaped tapering into c.8 mm slender stalk, apex caudate and curved down; obscurely pimpled above, sparsely minutely dotted beneath; veins subequal, c.15 pairs, venation visible but hardly and equally though distinctly raised below as also tertiaries, more or less shallowly grooved above though sometimes also distinctly raised, veins somewhat ascending; intramarginal vein 1, close to margin, hardly looped. Panicle to 3-terminal or subterminal- axillary, to 6 cm long hardly or not exceeding leaves, round, slender, 3-branched, spreading, many-flowered. Flower bud to 9 x 3 mm, clove-shaped, pseudostalk substantial gradually tapering to base, sepal lobes c.2 x 2 mm, unequal, ovate, acute, thick, cupped around the prominent domed corolla, flaring at flowering and in the young fruit; stamens many, stamens and style extending 8 mm. Fruit to 14 x 10 mm, spherical to ellipsoid, with c.5 mm diameter crown of persistent erect sepal lobes. [from Tree Flora of Sabah and Sarawak]

Ecology
Often in disturbed forests and regrowth, but also in undisturbed (peat)-swamp, keranga, mixed dipterocarp and sub-montane forests up to 2000 m altitude. Usually on alluvial, swampy sites near rivers and streams, but also on hillsides and ridges. On sandy soils, but also on limestone.

Distribution
Burma and Indo-China to the Moluccas.

Local names
Borneo: Galam, Gelam tikus, Krebumen, Obah, Siau, Ubah.